Condensed Consolidated Balance Sheets (USD $)	Jun. 30, 2014	Dec. 31, 2013
CURRENT ASSETS:
Cash and cash equivalents	$ 1,766,655	$ 1,114,873
Restricted cash	357,421	687,353
Notes receivable	100,711	703,718
Accounts receivable, net of allowance for doubtful accounts	13,663,007	15,234,863
Inventories, net of reserve for obsolete inventories	7,915,013	4,733,558
Advances to suppliers	675,372	695,254
Prepaid VAT on purchases	112,231	489,302
Deferred tax assets - current portion	251,331	253,173
Prepaid expenses and other	260,347	74,030
Total Current Assets	25,102,088	23,986,124
PROPERTY AND EQUIPMENT, net	72,827,658	70,595,138
OTHER ASSETS:
Deferred tax assets - net of current portion	1,213,320	1,222,216
Equipment held for operating lease, net	4,549,061	4,751,206
Land use rights, net	3,710,476	3,786,051
Total Assets	107,402,603	104,340,735
CURRENT LIABILITIES:
Short-term bank loans	3,086,821	3,109,453
Bank acceptance notes payable	357,421	687,353
Accounts payable	5,031,492	4,961,555
Accrued expenses	513,698	899,816
Advances from customers	386,990	1,455,740
VAT and service taxes payable	164,155	126,349
Income taxes payable	460,467	1,623,603
Total Current Liabilities	10,001,044	12,863,869
Total Liabilities	10,001,044	12,863,869
STOCKHOLDERS' EQUITY:
Preferred stock ($0.001 par value; 10,000,000 shares authorized; 0 share issued and outstanding at June 30, 2014 and December 31, 2013)
Common stock ($0.001 par value; 50,000,000 shares authorized; 3,859,986 and 3,503,502 shares issued and outstanding at June 30, 2014 and December 31, 2013, respectively)	3,860	3,503
Additional paid-in capital	33,517,857	31,532,308
Retained earnings	50,454,995	46,322,329
Statutory reserve	3,226,316	2,744,720
Accumulated other comprehensive income - foreign currency translation adjustment	10,198,531	10,874,006
Total Stockholders' Equity	97,401,559	91,476,866
Total Liabilities and Stockholders' Equity	$ 107,402,603	$ 104,340,735