Commitments and Contingencies (Details 2)	0 Months Ended
Aug. 02, 2011 Byrne Medical Business	Nov. 03, 2012 SPS Medical Supply Corp	Dec. 31, 2012 Eagle Pure Water Systems, Inc.
Long-Term Contractual Obligations
Compensation agreement term	3 years	3 years	3 years

The term of compensation agreement entered into by the entity with certain employees of acquired business.

No definition available.

Name:	cmn_CompensationAgreementTerm
Namespace Prefix:	cmn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration