CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
NET REVENUE	$ 191,007,886	$ 167,012,527	$ 360,094,153	$ 303,943,623
Cost of sales	(170,296,852)	(147,365,064)	(320,748,127)	(267,388,087)
GROSS PROFIT	20,711,034	19,647,463	39,346,026	36,555,536
Selling expenses	(740,988)	(668,366)	(1,426,994)	(1,191,402)
General and administrative expenses	(1,834,465)	(1,339,062)	(3,932,299)	(2,912,374)
Income from operations	18,135,581	17,640,035	33,986,733	32,451,760
Other income (expenses):
Interest income	204,694	136,941	367,830	270,046
Interest expenses		(49,014)		(70,480)
Gain on extinguishment of warrant liabilities		26,531	73,291	87,255
Change in fair value of warrants	(44,000)	1,179,151	(474,000)	2,554,252
Other income		23,879	94,779	99,830
Total other income (expenses), net	160,694	1,317,488	61,900	2,940,903
Income before income taxes	18,296,275	18,957,523	34,048,633	35,392,663
Provision for income taxes	(4,849,609)	(4,591,447)	(9,126,955)	(8,514,601)
NET INCOME	13,446,666	14,366,076	24,921,678	26,878,062
OTHER COMPREHENSIVE INCOME:
Foreign currency translation adjustments	(1,210,053)	2,344,495	(1,001,651)	4,009,012
COMPREHENSIVE INCOME	$ 12,236,613	$ 16,710,571	$ 23,920,027	$ 30,887,074
Net income per share
Basic	$ 0.45	$ 0.48	$ 0.84	$ 0.90
Diluted	$ 0.45	$ 0.48	$ 0.83	$ 0.89
Weighted average number of shares outstanding
Basic	29,820,836	29,872,934	29,810,996	29,865,896
Diluted	30,017,985	30,111,142	30,049,336	30,200,087