CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOW (unaudited) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net income	$ 10,556,110	$ 8,266,612
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	2,231,390	1,977,367
Amortization of prepaid leases	146,853	99,926
Amortization of capital lease	5,697	7,415
(Gain) loss on disposal of property, plant and equipment	(14,843)	177,165
Share-based compensation	478,514	1,099,319
Deferred tax assets	1,838,479
Unrecognized tax benefits - non-current	167,166	(198,589)
Changes in assets and liabilities
Decrease in trade receivables	5,645,302	26,571,260
(Increase) decrease in due from related parties	(3,814)	167,479
Decrease (increase) in advances to suppliers	1,893,089	(7,428,124)
Decrease (increase) in inventories	1,794,926	(518,671)
Decrease in prepayments and other current assets	6,426	12,632
Increase in income taxes receivable		(613,905)
Increase in recoverable value-added taxes	(120,334)	(422,662)
(Increase) decrease in loans and advances to third parties	(1,396,207)	205,438
Decrease in notes payable	(8,006,042)
Increase in accounts payable	2,691,005	5,612,458
Decrease in accrued expenses	(3,456,202)	(2,799,101)
Increase in income tax payable	243,714	1,781,019
Increase (decrease) in advances from customers	1,083,599	(6,273,197)
Increase in due to related parties	83,082	17,898
Increase (decrease) in advances from employees and employee benefits and salary payable	752,621	(2,618,590)
Decrease in other payables	(10,482,033)	(6,397,474)
Increase (decrease) in deferred income	(79,465)	1,193,475
Net cash provided by operating activities	6,059,033	19,919,150
Cash flows from investing activities:
Purchase of property, plant and equipment	(4,873,113)	(819,595)
Purchase of construction in progress	(2,964,575)	(309,789)
Loans and advances to third parties	(28,851,692)
Proceeds from sale of property, plant and equipment		2,793
Change in restricted cash	6,626,672	(1,721,926)
Net cash used in investing activities	(30,062,708)	(2,848,517)
Cash flows from financing activities:
Proceeds from short term bank loans	6,427,975
Repayment of short term bank loans	(8,034,968)	(1,429,002)
Redemption of redeemable common stocks		(16,317,566)
Proceeds from other long term loans		16,459,869
Payment for long term loan receivables		(21,101,602)
Payment on capital lease obligations		(265,379)
Net cash used in financing activities	(1,606,993)	(22,653,680)
Effect of exchange rate changes on cash	78,093	78,449
Net decrease in cash and cash equivalents	(25,532,575)	(5,504,598)
Cash and cash equivalents, beginning of period	40,425,310	15,353,882
Cash and cash equivalents, end of period	14,892,735	9,849,284
Supplemental disclosure of cash flow information:
Cash paid during the period for income tax	(2,067,535)	(931,150)
Interest paid during the period	(1,069,175)	(1,105,586)
Supplemental disclosure of non-cash investing and financing activities:
Settlement of consideration receivable by raw milk supply	$ 2,686,272	$ 3,332,369