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Consolidated Satatements of Cash Flows (USD $)
6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES:    
NET INCOME $ 3,835,119 $ 4,970,194
Adjustments to reconcile net income from operations to net cash provided by operating activities:    
Depreciation 2,503,759 1,200,642
Amortization of debt discount to interest expense 0 44,993
Amortization of land use rights 45,138 43,245
Increase in allowance for doubtful accounts 166,640 223,333
Stock-based compensation expense 214,807 345,386
Changes in assets and liabilities:    
Restricted cash (152,714) 0
Notes receivable (139,095) 137,942
Accounts receivable 1,439,402 (800,348)
Inventories (705,682) (1,221,872)
Prepaid value-added taxes on purchases 752,472 (330,132)
Prepaid and other current assets (91,109) 147,299
Advances to suppliers (1,610,347) 73,262
Bank acceptance notes payable 152,714 0
Accounts payable (2,838,972) 1,646,567
Accrued expenses 438,205 (203,916)
VAT and service taxes payable (82,407) 55,425
Income taxes payable (605,803) 30,102
Advances from customers 1,139,208 177,212
NET CASH PROVIDED BY OPERATING ACTIVITIES 4,461,335 6,539,334
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchase of property and equipment (4,796,171) (7,980,484)
NET CASH USED IN INVESTING ACTIVITIES (4,796,171) (7,980,484)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Proceeds from loans payable 1,832,570 0
Repayment of bank loans (1,374,428) (1,061,556)
Proceeds from sale of common stock 125,000 0
Proceeds from exercise of warrants 400,000 1,600,000
NET CASH PROVIDED BY FINANCING ACTIVITIES 983,142 538,444
EFFECT OF EXCHANGE RATE ON CASH AND CASH EQUIVALENTS 29,087 5,024
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS 677,393 (897,682)
CASH AND CASH EQUIVALENTS - beginning of year 947,177 2,278,638
CASH AND CASH EQUIVALENTS - end of period 1,624,570 1,380,956
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:    
Interest 62,528 50,563
Income taxes 2,105,018 1,888,014
NON-CASH INVESTING AND FINANCING ACTIVITIES:    
Series A preferred converted to common shares 936 1,910
Common stock issued for future service $ 113,317 $ 424