cm:Concept: us-gaap:CommonStockSharesSubscribedButUnissued
       
          
          | Common Stock, Shares Subscribed but Unissued | 
       
       
          
          | us-gaap:CommonStockSharesSubscribedButUnissued | 
       
       
          
          | Amount of common stock allocated to investors to buy shares of a new issue of common stock before they are offered to the public. When stock is sold on a subscription basis, the issuer does not initially receive the total proceeds. In general, the issuer does not issue the shares to the investor until it receives the entire proceeds. | 
       
       
          
          | cm:Concept | 
       
       
          
          | Shares (xbrli:sharesItemType) | 
       
       
          
          | As Of (instant) | 
       
       
          
          | (no balance type) | 
       
       
          
          | false | 
       
       
          
          | us-gaap:CommonStockSharesSubscribedButUnissued |