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Concentrations (Details 1) - Accounts Receivable [Member]
Dec. 31, 2015
Dec. 31, 2014
Concentration of accounts receivable 75.70% 74.30%
Customer 1 [Member]    
Concentration of accounts receivable 62.70% 47.60%
Customer 2 [Member]    
Concentration of accounts receivable 13.00% 26.70%