CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 42,148,316	$ 40,406,145
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	2,374,465	1,583,729
Share-based compensation	313,309	379,278
Gain on extinguishment of warrant liabilities	(73,291)	(87,255)
Change in fair value of warrants	23,000	(3,183,252)
Deferred income tax benefits	175,444	79,515
(Increase) decrease in assets:
Accounts receivable	(11,538,283)	8,490,664
Bills receivable		538,761
Prepayments for raw material purchases	4,866,964	(24,627,478)
Other receivables, deposits and prepayments	823,965	(438,156)
Inventories	(6,784,994)	(2,335,047)
Increase (decrease) in liabilities:
Accounts payable	1,162,203	2,181,287
Other payables and accruals	224,537	(900,961)
Income taxes payable	1,319,696	(659,145)
Net cash provided by operating activities	35,035,331	21,428,085
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of property, plant and equipment	(2,357,375)	(795,554)
Addition to construction in progress	(5,942,533)	(13,133,784)
Net cash used in investing activities	(8,299,908)	(13,929,338)
CASH FLOWS FROM FINANCING ACTIVITIES
Repurchase of common stock		(2,126,597)
Proceeds from exercise of warrants		1,898,049
Dividend paid	(992,846)
Net cash used in financing activities	(992,846)	(228,548)
Foreign currency translation adjustment	(895,003)	4,075,010
INCREASE IN CASH AND CASH EQUIVALENTS	24,847,574	11,345,209
CASH AND CASH EQUIVALENTS, at the beginning of the period	105,637,627	90,609,340
CASH AND CASH EQUIVALENTS, at the end of the period	130,485,201	101,954,549
MAJOR NON-CASH TRANSACTIONS:
Share-based compensation	313,309	379,278
Issuance of common stock to settle warrant liabilities	311,709	4,895,934
SUPPLEMENTAL DISCLOSURE INFORMATION
Cash paid for interest		109,174
Cash paid for income taxes	$ 13,490,647	$ 13,394,574