| Standard label: | Warrant, Exercise Price, Increase |
| Name: | us-gaap:WarrantExercisePriceIncrease |
| Documentation: | Per share increase in exercise price of warrant. Excludes change due to standard antidilution provision. |
| Object type: | cm:Concept |
| Data type: | Share (num:perShareItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:WarrantExercisePriceIncrease |
| Label | Role | Language |
| Warrant, Exercise Price, Increase | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 505 10 50 3 | http://www.xbrl.org/2003/role/disclosureRef | 505 |