Concentrations (Tables)

3 Months Ended

Mar. 31, 2013

Concentrations [Abstract]

Concentration of revenue from customers

	Three Months Ended March 31,
Customer	2013	2012
A	14%	*
B	10%	*
C	*	11%

*           Less than 10%.

Concentration of purchase from suppliers

	Three Months Ended March 31,
Supplier	2013			2012
A		16	%		*
B		*			22	%
C		*			23	%