| Standard label: | Substantial Doubt about Going Concern, within One Year [true false] | 
| Name: | us-gaap:SubstantialDoubtAboutGoingConcernWithinOneYear | 
| Documentation: | Indicates (true false) whether there was substantial doubt about ability to continue as going concern within one year after date financial statements are issued. | 
| Object type: | cm:Concept | 
| Data type: | Yes/No (xbrli:booleanItemType) | 
| Period type: | For Period (duration) | 
| Balance type: | (no balance type) | 
| Abstract: | false | 
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:SubstantialDoubtAboutGoingConcernWithinOneYear | 
| Label | Role | Language | 
| Substantial Doubt about Going Concern, within One Year [true false] | http://www.xbrl.org/2003/role/label | en-US | 
| Reference | Role | Topic | 
| FASB Accounting Standards Codification 205 40 50 13 | http://fasb.org/us-gaap/role/ref/legacyRef | 205 |