CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 13,311,187	$ 11,475,012
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	1,044,563	657,320
Share-based compensation	81,464	112,875
(Gain) on extinguishment of warrant liabilities	0	(73,291)
Change in fair value of warrants	108,000	430,000
Deferred income tax benefits	95	179,426
(Increase) decrease in assets:
Accounts receivable	3,375,085	2,829,666
Prepayments for raw material purchases	5,352,699	(6,020,960)
Other receivables, deposits and prepayments	372,431	879,411
Inventories	(3,634,076)	(2,056,628)
Increase (decrease) in liabilities:
Accounts payable	5,663,389	(889,271)
Other payables and accruals	44,734	(371,130)
Income taxes payable	(1,051,026)	(467,079)
Net cash provided by operating activities	24,668,545	6,685,351
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of property, plant and equipment and construction in progress	(457,225)	(146,645)
Deposits for plant and equipment	0	(3,754,080)
Net cash used in investing activities	(457,225)	(3,900,725)
CASH FLOWS FROM FINANCING ACTIVITIES
Dividend paid	0	(496,423)
Net cash used in financing activities	0	(496,423)
Foreign currency translation adjustment	420,669	68,258
INCREASE IN CASH AND CASH EQUIVALENTS	24,631,989	2,356,461
CASH AND CASH EQUIVALENTS, at the beginning of the period	144,300,290	105,637,627
CASH AND CASH EQUIVALENTS, at the end of the period	168,932,279	107,994,088
MAJOR NON-CASH TRANSACTION:
Share-based compensation to employees and directors	81,464	112,875
Issuance of common stock to settle warrant liabilities	0	311,704
SUPPLEMENTAL DISCLOSURE INFORMATION
Cash paid for income taxes	$ 5,765,619	$ 4,564,999