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Description of Business and Summary of Significant Accounting Policies (Concentration of Credit Risk) (Details) - Customer Concentration Risk [Member] - customer
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Sales [Member]      
Concentration Risk [Line Items]      
Number of customers over 10% or Sales and AR 1    
Sales [Member] | Shenzhen Xinlikang [Member]      
Concentration Risk [Line Items]      
Major customer, percentage of sales 19.00% 20.00% 22.00%
Accounts Receivable [Member] | Shenzhen Xinlikang [Member]      
Concentration Risk [Line Items]      
Major customer, percentage of sales 33.00%