CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Statutory Reserves	Retained Earnings	Accumulated Other Comprehensive Income
Beginning Balance at Dec. 31, 2010	$ 153,157,623	$ 2,938	$ 71,251,843		$ 7,556,187	$ 67,091,089	$ 7,255,566
Beginning Balance (in shares) at Dec. 31, 2010		29,385,326
Net income	26,878,062					26,878,062
Foreign currency translation adjustment	4,009,012						4,009,012
Comprehensive income	30,887,074
Exercise of warrants (in shares)		647,124
Exercise of warrants	6,793,983	65	6,793,918
Repurchase of common stock	(2,126,597)			(2,126,597)
Share-based payments to employees and directors	267,074		267,074
Appropriation of statutory reserves					1,313,341	(1,313,341)
Ending Balance at Jun. 30, 2011	$ 188,979,157	$ 3,003	$ 78,312,835	$ (2,126,597)	$ 8,869,528	$ 92,655,810	$ 11,264,578
Ending Balance (in shares) at Jun. 30, 2011		30,032,450