Concentrations and Risks (Details Textual) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011	Dec. 31, 2009
Concentrations and Risks (Textual)
Allowance for doubtful accounts
Number of wholesale customer	2	1	2	2
Percentage of revenues hold by wholesale customer one	11.00%	26.00%	13.00%	23.00%
Percentage of revenues hold by wholesale customer two	11.00%		12.00%	17.00%
Number of major suppliers			0	0
Percentage of purchases require for supplier to be major supplier			More than 10	More than 10
Number of raw materials suppliers	2	1	1	1
Percentage of raw materials supplied by suppliers one	11.00%	22.00%	14.00%	16.00%
Percentage of raw materials supplied by suppliers two	14.00%
Number of manufacturers	2	2	2	1
Percentgae of purchased finished goods represented by manufacturer one	19.00%	15.00%	17.00%	10.00%
Percentgae of purchased finished goods represented by manufacturer two	16.00%	11.00%	13.00%
Number of major supplier for retail business	0	1	0	0
Percentgae of purchased finished goods represented by major supplier		10.00%