Consolidated Balance Sheets (USD $)	Jun. 30, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 3,254,981	$ 1,445,728
Restricted cash	1,325,103
Notes receivable	356,984	88,029
Accounts receivable, net of allowance for doubtful accounts	10,041,350	10,078,623
Inventories, net of reserve for obsolete inventory	5,496,255	5,897,555
Advances to suppliers	1,083,719	593,104
Prepaid VAT on purchases	747,937	542,032
Prepaid expenses and other	358,778	428,326
Total Current Assets	22,665,107	19,073,397
PROPERTY AND EQUIPMENT - net	64,141,009	59,436,100
OTHER ASSETS:
Deferred tax asset	563,296	551,890
Equipment held for sale	7,265,684	7,118,555
Land use rights, net	3,786,215	3,756,342
Total Assets	98,421,311	89,936,284
CURRENT LIABILITIES:
Short-term bank loans	3,070,360	2,216,558
Bank acceptance notes payable	1,325,103
Accounts payable	4,678,568	5,474,479
Accrued expenses	590,757	986,824
Capital lease obligation - current portion	260,215	251,413
Advances from customers	2,193,374	1,851,987
VAT and service taxes payable	176,232	206,527
Income taxes payable	774,878	822,082
Total Current Liabilities	13,069,487	11,809,870
OTHER LIABILITIES:
Capital lease obligation - net of current portion		132,756
Total Liabilities	13,069,487	11,942,626
STOCKHOLDERS' EQUITY:
Preferred stock ($0.001 par value; 10,000,000 shares authorized; 0 share issued and outstanding at June 30, 2013 and December 31, 2012, respectively)
Common stock ($0.001 par value; 50,000,000 shares authorized; 3,322,984 and 2,894,586 shares issued and outstanding at June 30, 2013 and December 31, 2012, respectively)	3,323	2,894
Additional paid-in capital	30,754,245	28,987,128
Retained earnings	42,186,956	38,401,734
Statutory reserve	2,639,669	2,479,738
Accumulated other comprehensive gain - foreign currency translation adjustment	9,767,631	8,122,164
Total Stockholders' Equity	85,351,824	77,993,658
Total Liabilities and Stockholders' Equity	$ 98,421,311	$ 89,936,284