CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)	Total	Common Stock	Additional Paid-in Capital	Statutory Reserves	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Income
Beginning Balance at Dec. 31, 2011	$ 219,636,640	$ 3,003	$ 78,564,128	$ 10,418,476	$ (2,126,597)	$ 116,369,487	$ 16,408,143
Beginning Balance (in shares) at Dec. 31, 2011		29,772,434
Net income	24,921,678					24,921,678
Foreign currency translation adjustment	(1,001,651)						(1,001,651)
Exercise of warrants (in shares)		48,402
Exercise of warrants	311,709	5	311,704
Share-based payments to employees and directors	214,475		214,475
Appropriation of statutory reserves				1,717,613		(1,717,613)
Ending Balance at Jun. 30, 2012	$ 244,082,851	$ 3,008	$ 79,090,307	$ 12,136,089	$ (2,126,597)	$ 139,573,552	$ 15,406,492
Ending Balance (in shares) at Jun. 30, 2012		29,820,836