Loncor Resources Inc. (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 001 - Document - Document and Entity Information Network

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 http://www.loncor.com/role/DocumentAndEntityInformation
2 Statements [Table] Table

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3 Legal Entity [Axis] Axis dei:LegalEntityAxis
4 Entity [Domain] Member dei:EntityDomain
5 Statements [Line Items] LineItems ln:StatementsLineItems
6 Document Type Concept (Submission Type) For Period dei:DocumentType
7 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
8 Amendment Description Concept (Text/String) For Period dei:AmendmentDescription
9 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
10 Trading Symbol Concept (Text/String) For Period dei:TradingSymbol
11 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
12 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
13 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
14 Entity Filer Category Concept (Filer Category) For Period dei:EntityFilerCategory
15 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
16 Entity Current Reporting Status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
17 Entity Voluntary Filers Concept (Yes/No) For Period dei:EntityVoluntaryFilers
18 Entity Well Known Seasoned Issuer Concept (Yes/No) For Period dei:EntityWellKnownSeasonedIssuer
19 Entity Public Float Concept (Monetary) As Of Credit dei:EntityPublicFloat
20 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
21 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
22 Entity Emerging Growth Company Concept (Yes/No) For Period dei:EntityEmergingGrowthCompany
23 Entity Ex Transition Period Concept (Yes/No) For Period dei:EntityExTransitionPeriod
24 Entity Shell Company Concept (Yes/No) For Period dei:EntityShellCompany
25 002 - Statement - CONSOLIDATED STATEMENTS OF FINANCIAL POSITION Network

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 http://www.loncor.com/role/BalanceSheet
26 Statements [Table] Table

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27 Statements [Line Items] LineItems ln:StatementsLineItems
28 Assets Abstract ifrs-full:AssetsAbstract
29 Current Assets Abstract ifrs-full:CurrentAssetsAbstract
30 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
31 Advances receivable Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
32 Due from related parties Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivablesDueFromRelatedParties
33 Prepaid expenses and deposits Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaidExpenses
34 Total Current Assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
35 Non-Current Assets Abstract ifrs-full:NoncurrentAssetsAbstract
36 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
37 Exploration and evaluation assets Concept (Monetary) As Of Debit ifrs-full:AssetsArisingFromExplorationForAndEvaluationOfMineralResources
38 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
39 Total Non-Current Assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
40 Total Assets Concept (Monetary) As Of Debit ifrs-full:Assets
41 Liabilities and Shareholders' Equity Abstract ifrs-full:EquityAndLiabilitiesAbstract
42 Current Liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
43 Accounts payable Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
44 Accrued liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentAccruedExpensesAndOtherCurrentLiabilities
45 Due to related parties Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToRelatedParties
46 Employee retention allowance Concept (Monetary) As Of Credit ifrs-full:CurrentProvisionsForEmployeeBenefits
47 Loans Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
48 Current Liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
49 Common share purchase warrants Concept (Monetary) As Of Credit ln:CommonSharePurchaseWarrants
50 Total Liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
51 Commitments and contingencies Concept (Monetary) As Of Credit ln:CommitmentAndContingencies
52 Shareholders' Equity Abstract ifrs-full:EquityAbstract
53 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
54 Reserves Concept (Monetary) As Of Credit ifrs-full:CapitalReserve
55 Deficit Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
56 Total Shareholders' Equity Concept (Monetary) As Of Credit ifrs-full:Equity
57 Total Liabilities and Shareholders' Equity Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
58 003 - Statement - CONSOLIDATED STATEMENTS OF FINANCIAL POSITION (Parantheticals) Network

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 http://www.loncor.com/role/ConsolidatedStatementsOfFinancialPositionParantheticals
59 Implied Table Table

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60 Statement of Financial Position Abstract ifrs-full:StatementOfFinancialPositionAbstract
61 Number of shares issued Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
62 Number of shares outstanding Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
63 004 - Statement - CONSOLIDATED STATEMENTS OF LOSS AND COMPREHENSIVE LOSS Network

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 http://www.loncor.com/role/IncomeStatement
64 Statements [Table] Table

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65 Statements [Line Items] LineItems ln:StatementsLineItems
66 Expenses Abstract ifrs-full:ExpenseByNatureAbstract
67 Consulting, management and professional fees Concept (Monetary) For Period Debit ifrs-full:ProfessionalFeesExpense
68 Employee benefits Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
69 Office and sundry Concept (Monetary) For Period Debit ifrs-full:AdministrativeExpense
70 Compensation expense-share-based payment Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
71 Travel and promotion Concept (Monetary) For Period Debit ifrs-full:TravelExpense
72 Depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
73 Interest and bank expenses Concept (Monetary) For Period Debit ifrs-full:InterestExpense
74 (Gain)/loss on derivative instruments Concept (Monetary) For Period Credit ifrs-full:TradingIncomeExpenseOnDerivativeFinancialInstruments
75 Foreign exchange loss/(gain) Concept (Monetary) For Period Credit ifrs-full:NetForeignExchangeGain
76 Other income Concept (Monetary) For Period Credit ifrs-full:OtherIncome
77 Loss before other items Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
78 Interest income Concept (Monetary) For Period Credit ifrs-full:RevenueFromInterest
79 Loss for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
80 Comprehensive loss for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
81 Loss per share, basic and diluted (in dollars per share) Concept (Share) For Period ifrs-full:BasicAndDilutedEarningsLossPerShare
82 005 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY Network

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 http://www.loncor.com/role/StockholdersEquity
83 Statements [Table] Table

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84 Components of equity [Axis] Axis ifrs-full:ComponentsOfEquityAxis
85 Common shares [Member] Member ifrs-full:IssuedCapitalMember
86 Reserves [Member] Member ifrs-full:CapitalReserveMember
87 Deficit [Member] Member ifrs-full:RetainedEarningsMember
88 Equity components [Domain] Member ifrs-full:EquityMember
89 Statements [Line Items] LineItems ln:StatementsLineItems
90 Beginning Balance Concept (Monetary) As Of Credit ifrs-full:Equity
91 Beginning Balance (Shares) Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
92 Loss for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
93 Share-based payments Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
94 Common shares and warrants issued Concept (Monetary) For Period Credit ifrs-full:IssueOfEquity
95 Common shares and warrants issued (Shares) Concept (Shares) For Period ifrs-full:IncreaseDecreaseInNumberOfSharesOutstanding
96 Ending Balance Concept (Monetary) As Of Credit ifrs-full:Equity
97 Ending Balance (Shares) Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
98 006 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS Network

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 http://www.loncor.com/role/CashFlows
99 Statements [Table] Table

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100 Statements [Line Items] LineItems ln:StatementsLineItems
101 Cash flows from operating activities Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
102 Loss for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
103 Adjustments to reconcile loss to net cash used in operating activities Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
104 Depreciation Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense
105 Share-based payments - employee compensation Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
106 Loss/(gain) on derivative instruments Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives
107 Changes in non-cash working capital Abstract ln:ChangesInNonCashWorkingCapitalAbstract
108 Advances receivable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables
109 Employee retention allowance Concept (Monetary) For Period Credit ln:AdjustmentsForIncreaseDecreaseInEmployeeRetentionAllowanceCash
110 Prepaid expenses and deposits Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInOtherCurrentAssets
111 Due from related parties Concept (Monetary) For Period Debit ln:AdjustmentsForDecreaseIncreaseForDueFromRelatedParties
112 Accounts payable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAccountPayable
113 Accrued liabilities Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities
114 Net cash used in operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
115 Cash flows from investing activities Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
116 Disposition of property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
117 Purchase of property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
118 Expenditures on exploration and evaluation assets Concept (Monetary) For Period Credit ifrs-full:PurchaseOfExplorationAndEvaluationAssets
119 Net cash used in investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
120 Cash flows from financing activities Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
121 Proceeds from securities issuance, net of issuance costs Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
122 Loans Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
123 Due to related parties Concept (Monetary) For Period Credit ifrs-full:CashRepaymentsOfAdvancesAndLoansFromRelatedParties
124 Funds received from Randgold Concept (Monetary) For Period Debit ln:FundsReceivedFromRandgold
125 Net cash provided from financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
126 Net increase/(decrease) in cash and cash equivalents during the year Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalents
127 Cash and cash equivalents, beginning of the year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
128 Cash and cash equivalents, end of the year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
129 007 - Disclosure - CORPORATE INFORMATION Network

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130 Statements [Table] Table

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131 Legal Entity [Axis] Axis dei:LegalEntityAxis
132 Entity [Domain] Member dei:EntityDomain
133 Statements [Line Items] LineItems ln:StatementsLineItems
134 CORPORATE INFORMATION [Text Block] Concept (Text Block (HTML)) For Period ln:DisclosureOfNatureOfOperationsExplanatory
135 008 - Disclosure - BASIS OF PREPARATION Network

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136 Statements [Table] Table

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139 Statements [Line Items] LineItems ln:StatementsLineItems
140 BASIS OF PREPARATION [Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory
141 009 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Network

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142 Statements [Table] Table

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143 Legal Entity [Axis] Axis dei:LegalEntityAxis
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145 Statements [Line Items] LineItems ln:StatementsLineItems
146 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
147 010 - Disclosure - AQUISITIONS Network

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 http://www.loncor.com/role/Aquisitions
148 Implied Table Table

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 implied:Table
149 Disclosure of detailed information about business combination [abstract] Abstract ifrs-full:DisclosureOfBusinessCombinationsAbstract
150 AQUISITIONS [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBusinessCombinationsExplanatory
151 011 - Disclosure - SUBSIDIARIES Network

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152 Statements [Table] Table

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153 Legal Entity [Axis] Axis dei:LegalEntityAxis
154 Entity [Domain] Member dei:EntityDomain
155 Statements [Line Items] LineItems ln:StatementsLineItems
156 SUBSIDIARIES [Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestsInSubsidiariesExplanatory
157 012 - Disclosure - ADVANCES RECEIVABLE Network

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158 Statements [Table] Table

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159 Legal Entity [Axis] Axis dei:LegalEntityAxis
160 Entity [Domain] Member dei:EntityDomain
161 Statements [Line Items] LineItems ln:StatementsLineItems
162 ADVANCES RECEIVABLE [Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory
163 013 - Disclosure - RELATED PARTY TRANSACTIONS Network

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164 Statements [Table] Table

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165 Legal Entity [Axis] Axis dei:LegalEntityAxis
166 Entity [Domain] Member dei:EntityDomain
167 Statements [Line Items] LineItems ln:StatementsLineItems
168 RELATED PARTY TRANSACTIONS [Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRelatedPartyExplanatory
169 014 - Disclosure - PROPERTY, PLANT AND EQUIPMENT Network

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170 Statements [Table] Table

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171 Legal Entity [Axis] Axis dei:LegalEntityAxis
172 Entity [Domain] Member dei:EntityDomain
173 Statements [Line Items] LineItems ln:StatementsLineItems
174 PROPERTY, PLANT AND EQUIPMENT [Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
175 015 - Disclosure - EXPLORATION AND EVALUATION ASSETS Network

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176 Statements [Table] Table

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177 Legal Entity [Axis] Axis dei:LegalEntityAxis
178 Entity [Domain] Member dei:EntityDomain
179 Statements [Line Items] LineItems ln:StatementsLineItems
180 EXPLORATION AND EVALUATION ASSETS [Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExplorationAndEvaluationAssetsExplanatory
181 016 - Disclosure - INTANGIBLE ASSETS Network

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182 Statements [Table] Table

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183 Legal Entity [Axis] Axis dei:LegalEntityAxis
184 Entity [Domain] Member dei:EntityDomain
185 Statements [Line Items] LineItems ln:StatementsLineItems
186 INTANGIBLE ASSETS [Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIntangibleAssetsExplanatory
187 017 - Disclosure - SEGMENTED REPORTING Network

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188 Statements [Table] Table

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189 Legal Entity [Axis] Axis dei:LegalEntityAxis
190 Entity [Domain] Member dei:EntityDomain
191 Statements [Line Items] LineItems ln:StatementsLineItems
192 SEGMENTED REPORTING [Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOperatingSegmentsExplanatory
193 018 - Disclosure - ACCOUNTS PAYABLE Network

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194 Statements [Table] Table

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195 Legal Entity [Axis] Axis dei:LegalEntityAxis
196 Entity [Domain] Member dei:EntityDomain
197 Statements [Line Items] LineItems ln:StatementsLineItems
198 ACCOUNTS PAYABLE [Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory
199 019 - Disclosure - LOAN Network

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200 Statements [Table] Table

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201 Legal Entity [Axis] Axis dei:LegalEntityAxis
202 Entity [Domain] Member dei:EntityDomain
203 Statements [Line Items] LineItems ln:StatementsLineItems
204 LOAN [Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBorrowingsExplanatory
205 020 - Disclosure - SHARE CAPITAL Network

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206 Statements [Table] Table

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207 Legal Entity [Axis] Axis dei:LegalEntityAxis
208 Entity [Domain] Member dei:EntityDomain
209 Statements [Line Items] LineItems ln:StatementsLineItems
210 SHARE CAPITAL [Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIssuedCapitalExplanatory
211 021 - Disclosure - SHARE-BASED PAYMENTS Network

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212 Statements [Table] Table

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213 Legal Entity [Axis] Axis dei:LegalEntityAxis
214 Entity [Domain] Member dei:EntityDomain
215 Statements [Line Items] LineItems ln:StatementsLineItems
216 SHARE-BASED PAYMENTS [Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSharebasedPaymentArrangementsExplanatory
217 022 - Disclosure - COMMITMENTS AND CONTINGENCIES Network

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218 Statements [Table] Table

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219 Legal Entity [Axis] Axis dei:LegalEntityAxis
220 Entity [Domain] Member dei:EntityDomain
221 Statements [Line Items] LineItems ln:StatementsLineItems
222 COMMITMENTS AND CONTINGENCIES [Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCommitmentsExplanatory
223 023 - Disclosure - FINANCIAL RISK MANAGEMENT OBJECTIVES AND POLICIES Network

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224 Statements [Table] Table

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226 Entity [Domain] Member dei:EntityDomain
227 Statements [Line Items] LineItems ln:StatementsLineItems
228 FINANCIAL RISK MANAGEMENT OBJECTIVES AND POLICIES [Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialRiskManagementExplanatory
229 024 - Disclosure - SUPPLEMENTAL CASH FLOW INFORMATION Network

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230 Statements [Table] Table

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231 Legal Entity [Axis] Axis dei:LegalEntityAxis
232 Entity [Domain] Member dei:EntityDomain
233 Statements [Line Items] LineItems ln:StatementsLineItems
234 SUPPLEMENTAL CASH FLOW INFORMATION [Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashFlowStatementExplanatory
235 025 - Disclosure - EMPLOYEE RETENTION ALLOWANCE Network

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236 Statements [Table] Table

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239 Statements [Line Items] LineItems ln:StatementsLineItems
240 EMPLOYEE RETENTION ALLOWANCE [Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEmployeeBenefitsExplanatory
241 026 - Disclosure - INCOME TAXES Network

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242 Statements [Table] Table

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245 Statements [Line Items] LineItems ln:StatementsLineItems
246 INCOME TAXES [Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIncomeTaxExplanatory
247 027 - Disclosure - Summary of Significant Accounting Policies (Policies) Network

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248 Statements [Table] Table

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251 Statements [Line Items] LineItems ln:StatementsLineItems
252 Basis of Consolidation [Policy Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory
253 Use of Estimates and Judgments [Policy Text Block] Concept (Text Block (HTML)) For Period ln:DescriptionOfAccountingPolicyForUseOfEstimatesAndJudgmentsExplanatoryTextBlock
254 Foreign Currency Translation [Policy Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
255 Cash and Cash Equivalents [Policy Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents
256 Financial assets and liabilities (IFRS 9 applicable from January 1, 2018) [Policy Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialAssetsExplanatory
257 Financial assets and liabilities (IAS 39 applicable prior to January 1, 2018) [Policy Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory
258 Earnings (loss) Per Share [Policy Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory
259 Property, Plant and Equipment (PPE) [Policy Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
260 Exploration and Evaluation Assets [Policy Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForExplorationAndEvaluationExpenditures
261 Impairment of Non-Financial Assets [Policy Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory
262 Income Taxes [Policy Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
263 Share-Based Payments [Policy Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory
264 Provisions and Contingencies [Policy Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory
265 Related Party Transactions [Policy Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTransactionsWithRelatedPartiesExplanatory
266 Decommisionning obligations [Policy Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForDecommissioningRestorationAndRehabilitationProvisionsExplanatory
267 Newly Applied Accounting Standards [Policy Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfOtherAccountingPoliciesRelevantToUnderstandingOfFinancialStatements
268 Accounting Standards Issued But Not Yet Effective [Policy Text Block] Concept (Text Block (HTML)) For Period ln:DescriptionOfAccountingPolicyForAccountingStandardsIssuedButNotYetEffectiveExplanatoryPolicyTextBlock
269 028 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) Network

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270 Statements [Table] Table

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275 029 - Disclosure - SUBSIDIARIES (Tables) Network

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276 Statements [Table] Table

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281 030 - Disclosure - ADVANCES RECEIVABLE (Tables) Network

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282 Statements [Table] Table

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287 031 - Disclosure - RELATED PARTY TRANSACTIONS (Tables) Network

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292 Disclosure of information about key management personnel [Table Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationAboutKeyManagementPersonnelExplanatory
293 Disclosure of transactions between related parties [text block] [Table Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesExplanatory
294 032 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Tables) Network

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 http://www.loncor.com/role/NotesToFinancialStatementsDisclosureOfPropertyPlantAndEquipmentExplanatoryTextBlockTables
295 Statements [Table] Table

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296 Legal Entity [Axis] Axis dei:LegalEntityAxis
297 Entity [Domain] Member dei:EntityDomain
298 Statements [Line Items] LineItems ln:StatementsLineItems
299 Disclosure of detailed information about property, plant and equipment [Table Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
300 033 - Disclosure - EXPLORATION AND EVALUATION ASSETS (Tables) Network

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 http://www.loncor.com/role/NotesToFinancialStatementsDisclosureOfExplorationAndEvaluationAssetsExplanatoryTextBlockTables
301 Statements [Table] Table

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302 Legal Entity [Axis] Axis dei:LegalEntityAxis
303 Entity [Domain] Member dei:EntityDomain
304 Statements [Line Items] LineItems ln:StatementsLineItems
305 Disclosure of detailed information about exploration assets [Table Text Block] Concept (Text Block (HTML)) For Period ln:DisclosureOfDetailedInformationAboutExplorationAssetsExplanatory
306 034 - Disclosure - SEGMENTED REPORTING (Tables) Network

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 http://www.loncor.com/role/NotesToFinancialStatementsDisclosureOfOperatingSegmentsExplanatoryTextBlockTables
307 Statements [Table] Table

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308 Legal Entity [Axis] Axis dei:LegalEntityAxis
309 Entity [Domain] Member dei:EntityDomain
310 Statements [Line Items] LineItems ln:StatementsLineItems
311 Disclosure of detailed information about entity reportable segments [Table Text Block] Concept (Text Block (HTML)) For Period ln:DisclosureOfDetailedInformationAboutEntityReportableSegmentsExplanatory
312 035 - Disclosure - ACCOUNTS PAYABLE (Tables) Network

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 http://www.loncor.com/role/NotesToFinancialStatementsDisclosureOfTradeAndOtherPayablesExplanatoryTextBlockTables
313 Statements [Table] Table

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314 Legal Entity [Axis] Axis dei:LegalEntityAxis
315 Entity [Domain] Member dei:EntityDomain
316 Statements [Line Items] LineItems ln:StatementsLineItems
317 Disclosure of detailed information about trade and other payables [Table Text Block] Concept (Text Block (HTML)) For Period ln:DisclosureOfDetailedInformationAboutTradeAndOtherPayablesExplanatory
318 036 - Disclosure - SHARE CAPITAL (Tables) Network

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 http://www.loncor.com/role/NotesToFinancialStatementsDisclosureOfIssuedCapitalExplanatoryTextBlockTables
319 Statements [Table] Table

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320 Legal Entity [Axis] Axis dei:LegalEntityAxis
321 Entity [Domain] Member dei:EntityDomain
322 Statements [Line Items] LineItems ln:StatementsLineItems
323 Disclosure of detailed information about warrants outstanding [Table Text Block] Concept (Text Block (HTML)) For Period ln:DisclosureOfDetailedInformationAboutWarrantsOutstandingExplanatory
324 037 - Disclosure - SHARE-BASED PAYMENTS (Tables) Network

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 http://www.loncor.com/role/NotesToFinancialStatementsDisclosureOfSharebasedPaymentArrangementsExplanatoryTextBlockTables
325 Statements [Table] Table

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326 Legal Entity [Axis] Axis dei:LegalEntityAxis
327 Entity [Domain] Member dei:EntityDomain
328 Statements [Line Items] LineItems ln:StatementsLineItems
329 Disclosure of number and weighted average remaining contractual life of outstanding share options [Table Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory
330 038 - Disclosure - FINANCIAL RISK MANAGEMENT OBJECTIVES AND POLICIES (Tables) Network

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 http://www.loncor.com/role/NotesToFinancialStatementsDisclosureOfFinancialRiskManagementExplanatoryTextBlockTables
331 Statements [Table] Table

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332 Legal Entity [Axis] Axis dei:LegalEntityAxis
333 Entity [Domain] Member dei:EntityDomain
334 Statements [Line Items] LineItems ln:StatementsLineItems
335 Disclosure of fair value of financial instruments [Table Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueOfFinancialInstrumentsExplanatory
336 Disclosure of detailed information about foreign currency risk [Table Text Block] Concept (Text Block (HTML)) For Period ln:DisclosureOfDetailedInformationAboutForeignCurrencyRiskExplanatory
337 Disclosure of credit risk [Table Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCreditRiskExplanatory
338 Disclosure of detailed information about capital management [Table Text Block] Concept (Text Block (HTML)) For Period ln:DisclosureOfDetailedInformationAboutCapitalManagementExplanatory
339 039 - Disclosure - SUPPLEMENTAL CASH FLOW INFORMATION (Tables) Network

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 http://www.loncor.com/role/NotesToFinancialStatementsDisclosureOfCashFlowStatementExplanatoryTextBlockTables
340 Statements [Table] Table

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341 Legal Entity [Axis] Axis dei:LegalEntityAxis
342 Entity [Domain] Member dei:EntityDomain
343 Statements [Line Items] LineItems ln:StatementsLineItems
344 Disclosure of detailed information about supplemental cash flow information [Table Text Block] Concept (Text Block (HTML)) For Period ln:DisclosureOfDetailedInformationAboutSupplementalCashFlowInformationExplanatory
345 040 - Disclosure - EMPLOYEE RETENTION ALLOWANCE (Tables) Network

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 http://www.loncor.com/role/NotesToFinancialStatementsDisclosureOfEmployeeBenefitsExplanatoryTextBlockTables
346 Statements [Table] Table

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347 Legal Entity [Axis] Axis dei:LegalEntityAxis
348 Entity [Domain] Member dei:EntityDomain
349 Statements [Line Items] LineItems ln:StatementsLineItems
350 Disclosure of detailed information about employee retention allowance [Table Text Block] Concept (Text Block (HTML)) For Period ln:DisclosureOfDetailedInformationAboutEmployeeRetentionAllowanceTableTextBlock
351 041 - Disclosure - INCOME TAXES (Tables) Network

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 http://www.loncor.com/role/NotesToFinancialStatementsDisclosureOfIncomeTaxExplanatoryTextBlockTables
352 Statements [Table] Table

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353 Legal Entity [Axis] Axis dei:LegalEntityAxis
354 Entity [Domain] Member dei:EntityDomain
355 Statements [Line Items] LineItems ln:StatementsLineItems
356 Disclosure of detailed information about effective income tax expense recovery [Table Text Block] Concept (Text Block (HTML)) For Period ln:DisclosureOfDetailedInformationAboutEffectiveIncomeTaxExpenseRecoveryExplanatory
357 Disclosure of deferred taxes [Table Text Block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredTaxesExplanatory
358 Disclosure of detailed information about non-capital losses available explanatory [Table Text Block] Concept (Text Block (HTML)) For Period ln:DisclosureOfDetailedInformationAboutNoncapitalLossesAvailableExplanatoryTableTextBlock
359 042 - Disclosure - BASIS OF PREPARATION (Narrative) (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfBasisOfPreparationOfFinancialStatementsExplanatoryDetails
360 Statements [Table] Table

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361 Legal Entity [Axis] Axis dei:LegalEntityAxis
362 Entity [Domain] Member dei:EntityDomain
363 Statements [Line Items] LineItems ln:StatementsLineItems
364 Net loss Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
365 Working capital deficit Concept (Monetary) As Of Credit ln:WorkingCapitalDeficit
366 043 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatoryDetails
367 Statements [Table] Table

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368 Legal Entity [Axis] Axis dei:LegalEntityAxis
369 Entity [Domain] Member dei:EntityDomain
370 Statements [Line Items] LineItems ln:StatementsLineItems
371 Minimum proportion of voting rights necessary to determine control of a subsidiary Concept (Percent) For Period ln:MinimumProportionOfVotingRightsNecessaryToDetermineControlOfsubsidiary
372 Impairment of exploration and evaluation assets Concept (Monetary) For Period Debit ifrs-full:ImpairmentLoss
373 044 - Disclosure - AQUISITIONS (Narrative) (Details) Network

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 http://www.loncor.com/role/AQUISITIONSDetails
374 Disclosure of detailed information about business combination [table] Table

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 ifrs-full:DisclosureOfBusinessCombinationsTable
375 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
376 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
377 Devon Resources SARL [Member] Member ln:DevonResourcesSarlMember
378 Navarro Resources SARL [Member] Member ln:NavarroResourcesSarlMember
379 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
380 Number of instruments or interests issued or issuable Concept (Decimal) As Of ifrs-full:NumberOfInstrumentsOrInterestsIssuedOrIssuable
381 Equity interests of acquirer Concept (Monetary) As Of Credit ifrs-full:EquityInterestsOfAcquirer
382 Cash transferred Concept (Monetary) As Of Credit ifrs-full:CashTransferred
383 Repayments of borrowings, classified as financing activities Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
384 Consideration transferred, acquisition-date fair value Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
385 Liabilities settled Concept (Monetary) For Period ifrs-full:SettlementOfLiabilitiesByEntityOnBehalfOfRelatedPartyRelatedPartyTransactions
386 045 - Disclosure - ADVANCES RECEIVABLE (Narrative) (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfTradeAndOtherReceivablesExplanatoryDetails
387 Statements [Table] Table

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388 Legal Entity [Axis] Axis dei:LegalEntityAxis
389 Entity [Domain] Member dei:EntityDomain
390 Statements [Line Items] LineItems ln:StatementsLineItems
391 Advances receivable Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
392 046 - Disclosure - RELATED PARTY TRANSACTIONS (Narrative) (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfRelatedPartyExplanatoryDetails
393 Statements [Table] Table

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394 Categories of related parties [Axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
395 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
396 Kuuhubb Inc. [Member] Member ln:KuuhubbIncMember
397 Arnold Kondrat [Member] Member ln:ArnoldKondratMember
398 Gentor Resources Inc. [Member] Member ln:GentorResourcesIncMember
399 Two companies controlled by an officer of the Companys Congo subsidiary [Member] Member ln:TwoCompaniesControlledByAnOfficerOfTheCompanysCongoSubsidiaryMember
400 Legal Entity [Axis] Axis dei:LegalEntityAxis
401 Entity [Domain] Member dei:EntityDomain
402 Statements [Line Items] LineItems ln:StatementsLineItems
403 Amounts receivable, related party transactions Concept (Monetary) As Of Debit ifrs-full:AmountsReceivableRelatedPartyTransactions
404 Amounts payable, related party transactions Concept (Monetary) As Of Credit ifrs-full:AmountsPayableRelatedPartyTransactions
405 Advance receivable, related party transactions Concept (Monetary) As Of Debit ln:AdvanceReceivableRelatedPartyTransactions
406 Services received, related party transactions Concept (Monetary) For Period Debit ifrs-full:ServicesReceivedRelatedPartyTransactions
407 047 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Narrative) (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfPropertyPlantAndEquipmentExplanatoryDetails
408 Statements [Table] Table

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409 Legal Entity [Axis] Axis dei:LegalEntityAxis
410 Entity [Domain] Member dei:EntityDomain
411 Statements [Line Items] LineItems ln:StatementsLineItems
412 Depreciation capitalized to exploration and evaluation assets Concept (Monetary) For Period Debit ln:DepreciationCapitalisedToExplorationAndEvaluationAssets
413 048 - Disclosure - EXPLORATION AND EVALUATION ASSETS (Narrative) (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfExplorationAndEvaluationAssetsExplanatoryDetails
414 Statements [Table] Table

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415 Categories of related parties [Axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
416 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
417 Randgold Resources (DRC) Limited [Member] Member ln:RandgoldResourcesDRCLimitedMember
418 Loncor Resources Congo SARL [Member] Member ln:LoncorResourcesCongoSarlMember
419 Legal Entity [Axis] Axis dei:LegalEntityAxis
420 Entity [Domain] Member dei:EntityDomain
421 Statements [Line Items] LineItems ln:StatementsLineItems
422 Intangible exploration and evaluation expenditures Concept (Monetary) As Of Debit ifrs-full:IntangibleExplorationAndEvaluationAssets
423 Gold price used in valuation analysis Concept (Monetary) For Period Debit ln:GoldPriceUsedInValuationAnalysis
424 Impairment of exploration and evaluation assets Concept (Monetary) For Period Debit ifrs-full:ImpairmentLoss
425 Proportion of ownership interest in joint venture (Ngayu project) Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInJointVenture
426 049 - Disclosure - INTANGIBLE ASSETS (Narrative) (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfIntangibleAssetsExplanatoryDetails
427 Statements [Table] Table

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428 Legal Entity [Axis] Axis dei:LegalEntityAxis
429 Entity [Domain] Member dei:EntityDomain
430 Statements [Line Items] LineItems ln:StatementsLineItems
431 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
432 050 - Disclosure - LOAN (Narrative) (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfBorrowingsExplanatoryDetails
433 Statements [Table] Table

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434 Legal Entity [Axis] Axis dei:LegalEntityAxis
435 Entity [Domain] Member dei:EntityDomain
436 Statements [Line Items] LineItems ln:StatementsLineItems
437 Proceeds from loan Concept (Monetary) For Period Debit ifrs-full:ProceedsFromCurrentBorrowings
438 Loan, interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
439 Unsecured non-interest bearing note Concept (Monetary) As Of Credit ifrs-full:UnsecuredBankLoansReceived
440 Loans Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
441 051 - Disclosure - SHARE CAPITAL (Narrative) (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfIssuedCapitalExplanatoryDetails
442 Statements [Table] Table

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443 Range [Axis] Axis ifrs-full:RangeAxis
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445 Bottom of range [Member] Member ifrs-full:BottomOfRangeMember
446 Top of range [Member] Member ifrs-full:TopOfRangeMember
447 Equity transactions [Axis] Axis ln:EquityTransactionsAxis
448 Equity transactions [Domain] Member ln:EquityTransactionsDomain
449 First non-brokered private placement [Member] Member ln:FirstNonbrokeredPrivatePlacementMember
450 Second non-brokered private placement [Member] Member ln:SecondNonbrokeredPrivatePlacementMember
451 Private Placements [Member] Member ln:PrivatePlacementsMember
452 Share Swap Transaction [Member] Member ln:ShareSwapTransactionMember
453 Categories of related parties [Axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
454 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
455 Arnold Kondrat [Member] Member ln:ArnoldKondratMember
456 Legal Entity [Axis] Axis dei:LegalEntityAxis
457 Entity [Domain] Member dei:EntityDomain
458 Resolute Mining Limited [Member] Member ln:ResoluteMiningLimitedMember
459 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
460 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
461 Devon Resources SARL [Member] Member ln:DevonResourcesSarlMember
462 Statements [Line Items] LineItems ln:StatementsLineItems
463 Common shares issued during period Concept (Shares) For Period ifrs-full:IncreaseDecreaseInNumberOfSharesOutstanding
464 Equity issuance, share price Concept (Monetary) For Period Credit ln:EquityIssuanceSharePrice
465 Proceeds from share issuance Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
466 Proportion of ownership interest in company Concept (Percent) As Of ln:ProportionOfOwnershipInterestInCompany
467 Cash repayments of advances and loans from related parties Concept (Monetary) For Period Credit ifrs-full:CashRepaymentsOfAdvancesAndLoansFromRelatedParties
468 Number of units granted in share-based payment arrangement Concept (Decimal) For Period ln:NumberOfUnitsGrantedInSharebasedPaymentArrangement
469 Equity Issuance, Price per Unit Concept (Monetary) For Period Credit ln:EquityIssuancePricePerUnit
470 Proceeds from issuance of units Concept (Monetary) For Period Debit ln:ProceedsFromIssuanceOfUnits
471 Weighted average exercise price of warrants granted in share-based payment arrangement Concept (Monetary) For Period Credit ln:WeightedAverageExercisePriceOfWarrantsGrantedInSharebasedPaymentArrangement
472 Number of shares issued Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
473 Number of shares outstanding Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
474 Proceeds from issue of ordinary shares Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssueOfOrdinaryShares
475 Value of shares in future issuance from swap transaction Concept (Monetary) For Period Debit ln:ValueOfSharesInFutureIssuanceFromSwapTransaction
476 Maximum Capped Shares Concept (Shares) For Period ln:MaximumCappedShares
477 Number of warrants outstanding in share-based payment arrangement Concept (Decimal) As Of ln:NumberOfOutstandingWarrants
478 Number of warrants forfeited in share-based payment arrangement Concept (Decimal) For Period ln:NumberOfWarrantsForfeitedInSharebasedPaymentArrangement
479 Gain/(loss) on derivative instruments Concept (Monetary) For Period Credit ifrs-full:TradingIncomeExpenseOnDerivativeFinancialInstruments
480 Risk free interest rate, warrants granted Concept (Percent) For Period ln:DescriptionOfRiskFreeInterestRateWarrantsGranted
481 Expected volatility, warrants granted Concept (Percent) For Period ln:DescriptionOfExpectedVolatilityWarrantsGranted
482 Expected life, warrants granted Concept (Decimal) For Period ln:DescriptionOfOptionLifeWarrantsGranted
483 Expected dividend, warrants granted Concept (Monetary) For Period Credit ln:ExpectedDividendWarrantsGranted
484 Weighted Average Number of Shares, Basic Concept (Shares) For Period ifrs-full:WeightedAverageShares
485 Weighted Average Number of Shares, Diluted Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
486 Dilutive effect of share options on number of ordinary shares Concept (Shares) For Period ifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares
487 Dilutive effect of share purchase warrants on number of ordinary shares Concept (Shares) For Period ln:DilutiveEffectOfSharePurchaseWarrantsOnNumberOfOrdinaryShares
488 052 - Disclosure - SHARE-BASED PAYMENTS (Narrative) (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfSharebasedPaymentArrangementsExplanatoryDetails
489 Statements [Table] Table

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490 Legal Entity [Axis] Axis dei:LegalEntityAxis
491 Entity [Domain] Member dei:EntityDomain
492 Statements [Line Items] LineItems ln:StatementsLineItems
493 Description of vesting requirements for share-based payment arrangement Concept (Text/String) For Period ifrs-full:DescriptionOfVestingRequirementsForSharebasedPaymentArrangement
494 Weighted average fair value at measurement date, share options granted Concept (Monetary) As Of Credit ifrs-full:WeightedAverageFairValueAtMeasurementDateShareOptionsGranted
495 Compensation expense-share-based payment Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
496 053 - Disclosure - COMMITMENTS AND CONTINGENCIES (Narrative) (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfCommitmentsExplanatoryDetails
497 Statements [Table] Table

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498 Legal Entity [Axis] Axis dei:LegalEntityAxis
499 Entity [Domain] Member dei:EntityDomain
500 Maturity [axis] Axis ifrs-full:MaturityAxis
501 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
502 August 2019 [Member] Member ln:TimeBandOfAugust2019Member
503 October 2022 [Member] Member ln:TimeBandOfOctober2022Member
504 Statements [Line Items] LineItems ln:StatementsLineItems
505 Minimum operating lease payments recognised as expense Concept (Monetary) For Period Debit ifrs-full:MinimumOperatingLeasePayments
506 054 - Disclosure - FINANCIAL RISK MANAGEMENT OBJECTIVES AND POLICIES (Narrative) (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfFinancialRiskManagementExplanatoryDetails
507 Statements [Table] Table

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508 Legal Entity [Axis] Axis dei:LegalEntityAxis
509 Entity [Domain] Member dei:EntityDomain
510 Statements [Line Items] LineItems ln:StatementsLineItems
511 Accounts payable Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
512 Accrued liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentAccruedExpensesAndOtherCurrentLiabilities
513 Due to related parties Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToRelatedParties
514 Employee retention allowance Concept (Monetary) As Of Credit ifrs-full:CurrentProvisionsForEmployeeBenefits
515 Loan Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
516 055 - Disclosure - EMPLOYEE RETENTION ALLOWANCE (Narrative) (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfEmployeeBenefitsExplanatoryDetails
517 Statements [Table] Table

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518 Legal Entity [Axis] Axis dei:LegalEntityAxis
519 Entity [Domain] Member dei:EntityDomain
520 Statements [Line Items] LineItems ln:StatementsLineItems
521 Description of incentive employee retention plan Concept (Text/String) For Period ln:DescriptionOfIncentiveEmployeeRetentionPlan
522 Employee retention allowance Concept (Monetary) As Of Credit ifrs-full:CurrentProvisionsForEmployeeBenefits
523 056 - Disclosure - INCOME TAXES (Narrative) (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfIncomeTaxExplanatoryDetails
524 Statements [Table] Table

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525 Legal Entity [Axis] Axis dei:LegalEntityAxis
526 Entity [Domain] Member dei:EntityDomain
527 Statements [Line Items] LineItems ln:StatementsLineItems
528 Canadian federal and provincial statutory rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
529 057 - Disclosure - Disclosure of detailed information about estimated useful life or depreciation rate (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfDetailedInformationAboutEstimatedUsefulLifeOrDepreciationRateExplanatoryDetails
530 Statements [Table] Table

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531 Classes of property, plant and equipment [Axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
532 Property, plant and equipment [Domain] Member ifrs-full:PropertyPlantAndEquipmentMember
533 Field camps and equipment [Member] Member ifrs-full:OtherPropertyPlantAndEquipmentMember
534 Furniture and fixtures [Member] Member ifrs-full:FixturesAndFittingsMember
535 Office and communications equipment [Member] Member ifrs-full:OfficeEquipmentMember
536 Vehicles [Member] Member ifrs-full:MotorVehiclesMember
537 Leasehold improvements [Member] Member ifrs-full:LeaseholdImprovementsMember
538 Legal Entity [Axis] Axis dei:LegalEntityAxis
539 Entity [Domain] Member dei:EntityDomain
540 Statements [Line Items] LineItems ln:StatementsLineItems
541 Useful lives or depreciation rates, property, plant and equipment Concept (Text/String) For Period ifrs-full:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipment
542 058 - Disclosure - Disclosure of subsidiaries (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfSignificantInvestmentsInSubsidiariesExplanatoryDetails
543 Statements [Table] Table

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544 Subsidiaries [Axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
545 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
546 Loncor Resources Congo SARL [Member] Member ln:LoncorResourcesCongoSarlMember
547 Nevada Bob's Franchising, Inc. [Member] Member ln:NevadaBobsFranchisingIncMember
548 Devon Resources SARL [Member] Member ln:DevonResourcesSarlMember
549 Navarro Resources SARL [Member] Member ln:NavarroResourcesSarlMember
550 Legal Entity [Axis] Axis dei:LegalEntityAxis
551 Entity [Domain] Member dei:EntityDomain
552 Statements [Line Items] LineItems ln:StatementsLineItems
553 Proportion of ownership interest in subsidiary Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
554 059 - Disclosure - Disclosure of detailed information about trade and other receivables (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfDetailedInformationAboutTradeAndOtherReceivablesExplanatoryDetails
555 Statements [Table] Table

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556 Legal Entity [Axis] Axis dei:LegalEntityAxis
557 Entity [Domain] Member dei:EntityDomain
558 Statements [Line Items] LineItems ln:StatementsLineItems
559 Advances receivable Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
560 060 - Disclosure - Disclosure of information about key management personnel (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfInformationAboutKeyManagementPersonnelExplanatoryDetails
561 Statements [Table] Table

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562 Legal Entity [Axis] Axis dei:LegalEntityAxis
563 Entity [Domain] Member dei:EntityDomain
564 Statements [Line Items] LineItems ln:StatementsLineItems
565 Salaries Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
566 Employee retention allowance Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationOtherLongtermBenefits
567 Compensation expense-share-based payments Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment
568 Key management personnel compensation Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
569 061 - Disclosure - Disclosure of transactions between related parties (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfTransactionsBetweenRelatedPartiesExplanatoryDetails
570 Statements [Table] Table

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571 Legal Entity [Axis] Axis dei:LegalEntityAxis
572 Entity [Domain] Member dei:EntityDomain
573 Statements [Line Items] LineItems ln:StatementsLineItems
574 Due from related party Concept (Monetary) As Of Debit ifrs-full:AmountsReceivableRelatedPartyTransactions
575 Due to related parties Concept (Monetary) As Of Credit ifrs-full:AmountsPayableRelatedPartyTransactions
576 062 - Disclosure - Disclosure of detailed information about property, plant and equipment (Details) Network

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 http://www.loncor.com/role/DisclosureDisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatoryDetails
577 Statements [Table] Table

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578 Classes of property, plant and equipment [Axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
579 Property, plant and equipment [Domain] Member ifrs-full:PropertyPlantAndEquipmentMember
580 Furniture and fixtures [Member] Member ifrs-full:FixturesAndFittingsMember
581 Office and communications equipment [Member] Member ifrs-full:OfficeEquipmentMember
582 Vehicles [Member] Member ifrs-full:MotorVehiclesMember
583 Field camps and equipment [Member] Member ifrs-full:OtherPropertyPlantAndEquipmentMember
584 Leasehold improvements [Member] Member ifrs-full:LeaseholdImprovementsMember
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586 Carrying amount [Domain] Member ifrs-full:CarryingAmountMember
587 Cost [Member] Member ifrs-full:AtCostMember
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594 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
595 Property, plant and equipment at end of period Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
596 063 - Disclosure - Disclosure of detailed information about exploration assets (Details) Network

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597 Statements [Table] Table

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601 Ngayu [Member] Member ln:NgayuMember
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607 Adjustments Concept (Monetary) For Period Credit ln:AdjustmentsToExplorationAndEvaluationAssetsAndMineralProperties
608 Earn-in Randgold payment Concept (Monetary) For Period Credit ln:EarnInRandgoldPayment
609 Tangible exploration and evaluation assets Concept (Monetary) As Of Debit ifrs-full:TangibleExplorationAndEvaluationAssets
610 064 - Disclosure - Disclosure of detailed information about entity reportable segments (Details) Network

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611 Statements [Table] Table

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615 Canada [Member] Member country:CA
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620 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
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622 065 - Disclosure - Disclosure of detailed information about trade and other payables (Details) Network

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629 Total Accounts Payable Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
630 066 - Disclosure - Disclosure of detailed information about warrants outstanding (Details) Network

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635 Granted 03/02/2017 [Member] Member ln:GrantedZeroThreeZeroTwoTwoZeroOneSevenMember
636 Granted 28/02/2017 [Member] Member ln:GrantedTwoEightZeroTwoTwoZeroOneSevenMember
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642 Exercised Concept (Decimal) For Period ln:NumberOfWarrantsExercisedInSharebasedPaymentArrangement
643 Expired Concept (Decimal) For Period ln:NumberOfWarrantsExpiredInSharebasedPaymentArrangement
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645 Exercise Price Concept (Monetary) As Of Credit ln:WeightedAverageExercisePriceOfWarrantsOutstandingInSharebasedPaymentArrangement
646 Exercise period (months) Concept (Decimal) For Period ln:DescriptionOfOptionLifeWarrantsGranted
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648 067 - Disclosure - Disclosure of number and weighted average remaining contractual life of outstanding share options (Details) Network

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649 Statements [Table] Table

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664 Exercised Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
665 Forfeiture Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement
666 Expired Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement
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673 Weighted average exercise price of share options exercised in share-based payment arrangement Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement
674 Weighted average exercise price of share options forfeited in share-based payment arrangement Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement
675 Weighted average exercise price of share options expired Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement
676 Weighted average exercise price of share options outstanding closing balance Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
677 Weighted average exercise price of share options vested and exercisable Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement
678 Weighted average exercise price of stock options unvested Concept (Monetary) As Of Credit ln:WeightedAverageExercisePriceOfStockOptionsUnvested
679 068 - Disclosure - Disclosure of fair value of financial instruments (Details) Network

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680 Statements [Table] Table

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685 Level 3 [Member] Member ifrs-full:Level3OfFairValueHierarchyMember
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690 069 - Disclosure - Disclosure of detailed information about foreign currency risk (Details) Network

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691 Statements [Table] Table

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694 Amounts held in foreign currencies [Member] Member ln:AmountsHeldInForeignCurrenciesMember
695 Currency risk [Member] Member ifrs-full:CurrencyRiskMember
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700 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayables
701 Employee retention allowance Concept (Monetary) As Of Credit ifrs-full:CurrentProvisionsForEmployeeBenefits
702 Total foreign currency financial assets and liabilities Concept (Monetary) As Of Debit ifrs-full:NetAssetsLiabilities
703 Foreign exchange rate Concept (Decimal) As Of ifrs-full:ClosingForeignExchangeRate
704 Sensitivity analysis, convidence interval, percentage Concept (Percent) As Of ln:SensitivityAnalysisConvidenceIntervalPercentage
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706 070 - Disclosure - Disclosure of credit risk (Details) Network

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707 Statements [Table] Table

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714 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
715 Advances receivable Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
716 Due from related parties Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivablesDueFromRelatedParties
717 Value at risk Concept (Monetary) As Of ifrs-full:ValueAtRisk
718 071 - Disclosure - Disclosure of detailed information about capital management (Details) Network

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719 Statements [Table] Table

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725 Deficit Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
726 Common share purchase warrants Concept (Monetary) As Of Credit ln:CommonSharePurchaseWarrants
727 Capital Concept (Monetary) As Of Credit ln:Capitals
728 072 - Disclosure - Disclosure of detailed information about supplemental cash flow information (Details) Network

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729 Statements [Table] Table

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734 Employee retention allowance included in exploration and evaluation assets Concept (Monetary) For Period Debit ln:EmployeeRetentionAllowanceIncludedInExplorationAndEvaluationAssets
735 Exploration and evaluation expenditures by Randgold Concept (Monetary) For Period Debit ln:ExplorationAndEvaluationExpendituresByRandgold
736 073 - Disclosure - Disclosure of detailed information about employee retention allowance (Details) Network

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737 Statements [Table] Table

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743 Change in estimate Concept (Monetary) For Period Credit ln:ProvisionsForEmployeeRetentionAllowanceChangeInEstimate
744 Disbursements Concept (Monetary) For Period Credit ln:DisbursementsToProvisionsForEmployeeRetentionAllowance
745 Foreign exchange gain Concept (Monetary) For Period Credit ln:ForeignExchangeGainLossRelatedToProvisionsForEmployeeRetentionAllowance
746 Employee retention allowance, ending balance Concept (Monetary) As Of Credit ifrs-full:CurrentProvisionsForEmployeeBenefits
747 074 - Disclosure - Disclosure of detailed information about effective income tax expense recovery (Details) Network

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748 Statements [Table] Table

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753 Difference between Canadian rates and rates applicable to subsidiary in the Foreign Jurisdictions Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfForeignTaxRates
754 Net loss for the year Concept (Monetary) For Period Credit ifrs-full:AccountingProfit
755 Expected Income tax recovery based on statutory rate Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
756 Permanent differences Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss
757 Other Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
758 Change in unrecognized deferred tax asset Concept (Monetary) For Period Debit ln:TaxEffectOfChangeInUnrecognizedDeferredTaxAsset
759 Income tax expense Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
760 075 - Disclosure - Disclosure of deferred taxes (Details) Network

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761 Statements [Table] Table

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765 Financing costs - Canada [Member] Member ln:FinancingCostsCanadaMember
766 Fixed assets - Canada [Member] Member ln:FixedAssetsCanadaMember
767 Other - Canada [Member] Member ln:OtherCanadaMember
768 Capital loss carry-forwards -Canada [Member] Member ln:CapitalLossCarryForwardsCanadaMember
769 Exploration and evaluation properties - Congo [Member] Member ln:ExplorationAndEvaluationPropertiesCongoMember
770 Legal Entity [Axis] Axis dei:LegalEntityAxis
771 Entity [Domain] Member dei:EntityDomain
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774 076 - Disclosure - Disclosure of detailed information about non-capital losses available explanatory (Details) Network

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775 Statements [Table] Table

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780 Noncapital Losses Carried Forward By Expiration Date [Domain] Member ln:NoncapitalLossesCarriedForwardByExpirationDateDomain
781 2023 [Member] Member ln:TwoZeroTwoThreeMember
782 2024 [Member] Member ln:TwoZeroTwoFourMember
783 2025 [Member] Member ln:TwoZeroTwoFiveMember
784 2026 [Member] Member ln:TwoZeroTwoSixMember
785 2027 [Member] Member ln:TwoZeroTwoSevenMember
786 2028 [Member] Member ln:TwoZeroTwoEightMember
787 2029 [Member] Member ln:TwoZeroTwoNineMember
788 2030 [Member] Member ln:TwoZeroThreeZeroMember
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790 2032 [Member] Member ln:TwoZeroThreeTwoMember
791 2033 [Member] Member ln:TwoZeroThreeThreeMember
792 2034 [Member] Member ln:TwoZeroThreeFourMember
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