Description of the Company's Business and Basis of Presentation (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Description of Company's Business And Basis of Presentation (Textual) [Abstract]
Health care and pharmacy services share in revenue	96.00%	96.00%
Health care and pharmacy services revenue	$ 66.0	$ 68.4

Health care and pharmacy services share in revenue percentage.

No definition available.

Name:	chcr_HealthCareAndPharmacyServicesShareInRevenuePercentage
Namespace Prefix:	chcr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration