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Concentrations (Details 1) (Purchase [Member])
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Supplier A [Member]
       
Concentration of purchase from suppliers        
Concentration risk supplier, Percentage 14.00% 27.00% 15.00% 15.00%
Supplier B [Member]
       
Concentration of purchase from suppliers        
Concentration risk supplier, Percentage 15.00% 17.00% 18.00% 17.00%
Supplier C [Member]
       
Concentration of purchase from suppliers        
Concentration risk supplier, Percentage 15.00%    [1] 16.00% 10.00%
[1] * Less than 10%.