Consolidated Balance Sheets - USD ($)	Dec. 31, 2015	Dec. 31, 2014
CURRENT ASSETS:
Cash and cash equivalents	$ 18,790,370	$ 7,835,791
Restricted cash	647,080	488,719
Notes receivable	132,497	114,034
Accounts receivable, net of allowance for doubtful accounts	15,823,859	20,316,037
Inventories, net of reserve for obsolete inventories	1,827,084	4,241,022
Advances to suppliers	1,038,884	565,581
Deferred tax assets	220,895	375,744
Prepaid expenses and other	992,055	153,260
Total Current Assets	39,472,724	34,090,188
PROPERTY AND EQUIPMENT, net	$ 51,753,964	69,628,597
OTHER ASSETS:
Equipment held for sale		422,540
Land use rights, net	$ 3,382,071	3,672,420
Total Assets	94,608,759	107,813,745
CURRENT LIABILITIES:
Short-term bank loans	3,081,332	3,095,219
Bank acceptance notes payable	647,080	488,719
Accounts payable	3,489,815	4,322,275
Accrued expenses	6,361,079	1,059,579
Advances from customers	433,050	495,461
VAT and service taxes payable	269,284	500,569
Income taxes payable	259,987	531,120
Total Current Liabilities	14,541,627	10,492,942
Total Liabilities	$ 14,541,627	$ 10,492,942
Commitments and contingencies
STOCKHOLDERS' EQUITY:
Preferred stock ($0.001 par value; 10,000,000 shares authorized; 0 share issued and outstanding at December 31, 2015 and 2014)
Common stock ($0.001 par value; 50,000,000 shares authorized; 3,943,986 and 3,859,986 shares issued and outstanding at December 31, 2015 and 2014, respectively)	$ 3,944	$ 3,860
Additional paid-in capital	33,803,333	33,517,857
Retained earnings	37,007,776	50,039,267
Statutory reserve	3,555,468	3,294,199
Accumulated other comprehensive income - foreign currency translation adjustment	5,696,611	10,465,620
Total Stockholders' Equity	80,067,132	97,320,803
Total Liabilities and Stockholders' Equity	$ 94,608,759	$ 107,813,745