Concentrations (Details 1) (Purchase [Member])	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Concentration of purchase from suppliers
Concentration risk supplier, Percentage	10.00%		10.00%
Supplier A [Member]
Concentration of purchase from suppliers
Concentration risk supplier, Percentage	22.00%		21.00%
Supplier B [Member]
Concentration of purchase from suppliers
Concentration risk supplier, Percentage	21.00%		18.00%
Supplier C [Member]
Concentration of purchase from suppliers
Concentration risk supplier, Percentage		[1]	16.00%

[1] * Less than 10%.