Concentrations (Details 1) (Purchase [Member])	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Supplier A [Member]
Concentration of purchase from suppliers
Concentration risk supplier, Percentage	10.00%		[1]
Supplier B [Member]
Concentration of purchase from suppliers
Concentration risk supplier, Percentage	12.00%	16.00%
Supplier C [Member]
Concentration of purchase from suppliers
Concentration risk supplier, Percentage	12.00%		[1]
Supplier D [Member]
Concentration of purchase from suppliers
Concentration risk supplier, Percentage	13.00%		[1]

[1] * Less than 10%.