Commitments And Contingencies Information Of Non Cancelable Operating Leases (Details) (USD $)	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Total rent expenses excluding amortization of prepaid mining rights and office premises	$ 91,749	$ 84,471

Total rent expenses excluding amortization of prepaid mining rights.

No definition available.

Name:	CSM_TotalRentExpensesExcludingAmortizationOfPrepaidMiningRights
Namespace Prefix:	CSM_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration