Credit Facilities (Details)	12 Months Ended
	Dec. 31, 2014 Shanghai Pudong Development Bank Co. Ltd. [Member] USD ($)	Dec. 31, 2013 Shanghai Pudong Development Bank Co. Ltd. [Member] USD ($)	Dec. 31, 2012 Shanghai Pudong Development Bank Co. Ltd. [Member] USD ($)	Dec. 31, 2012 Shanghai Pudong Development Bank Co. Ltd. [Member] CNY	Dec. 31, 2013 Shanghai Pudong Development Bank Co. Ltd. [Member] CNY	Dec. 31, 2013 NovaMed [Member] USD ($)	Dec. 31, 2013 NovaMed [Member] CNY
Line of Credit Facility [Line Items]
Line of credit facility, amount terminated			$ 2,000,000	12,500,000
Debt financing facility, maximum borrowing capacity		2,400,000			15,000,000	1,600,000	10,000,000
Percentage points added to reference rate	15.00%
Effective interest rate	6.44%	6.44%	7.50%	7.50%
Debt financing facility, expiration date	Nov. 30, 2014		Aug. 29, 2013	Aug. 29, 2013
Interest paid	$ 48,000	$ 81,000	$ 11,000