| Standard label: | Substantial Doubt about Going Concern, Management's Evaluation | 
| Name: | us-gaap:SubstantialDoubtAboutGoingConcernManagementsEvaluation | 
| Documentation: | Description of management's evaluation of the significance of conditions or events in relation to the ability to meet its obligations. | 
| Object type: | cm:Concept | 
| Data type: | Text/String (xbrli:stringItemType) | 
| Period type: | For Period (duration) | 
| Balance type: | (no balance type) | 
| Abstract: | false | 
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:SubstantialDoubtAboutGoingConcernManagementsEvaluation | 
| Label | Role | Language | 
| Substantial Doubt about Going Concern, Management's Evaluation | http://www.xbrl.org/2003/role/label | en-US | 
| Reference | Role | Topic | 
| FASB Accounting Standards Codification 205 40 50 12 (b) | http://fasb.org/us-gaap/role/ref/legacyRef | 205 | 
| FASB Accounting Standards Codification 205 40 50 13 (b) | http://fasb.org/us-gaap/role/ref/legacyRef | 205 |