cm:Member: us-gaap:RegistrationPaymentArrangementArrangementDomain
| Registration Payment Arrangement, Arrangement [Domain] |
| us-gaap:RegistrationPaymentArrangementArrangementDomain |
| Identifies and describes the contingent obligation arising from a commitment made to the recipient of the entity's financial instruments to endeavor (a) to file a registration statement for the resale of those financial instrument (demand or "piggyback" rights granted to the recipient) or for the resale of equity shares that are issuable upon exercise or conversion of those financial instruments and (b) for the registration statement to be declared effective by the Securities and Exchange Commission within a specified grace period. |
| cm:Member |
| [Member] (nonnum:domainItemType) |
| For Period (duration) |
| (no balance type) |
| true |
| us-gaap:RegistrationPaymentArrangementArrangementDomain |