Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Cash Flows From Operating Activities
Net Income	$ 21,354,910	$ 14,525,067
Adjustments to reconcile net income to net cash provided by operating activities:
Allowance for doubtful accounts	395,491	2,042,952
Depreciation and amortization	7,239,908	7,409,441
Deferred income tax	(502,903)	(1,183,270)
Gain on disposal of property and equipment	0	(47,556)
Loss on disposal of subsidiary	0	3,170,821
Impairment on long-lived assets	0	561,847
Changes in assets and liabilities:
Account receivable	(39,422,631)	(10,617,554)
Bank acceptance notes from customers	(21,991,160)	(6,446,881)
Other currents assets	(291,979)	(412,073)
Inventories, net	3,281,901	5,100,033
Prepayments	(7,366,749)	299,376
Prepaid capital lease interest	90,373	273,896
Accounts payable and bank acceptance notes to vendors	31,988,447	22,657,753
Income tax payable	1,314,808	(1,372,293)
Deposits received from customers	4,135,536	2,126,933
Other current liabilities and accrued expenses	5,201,618	1,225,759
Net Cash Flows Provided By Operating Activities	5,427,570	39,314,251
Cash Flows From Investing Activities
Change in short term investments	58,993,591	(29,015,636)
Acquisition of property, equipment, plant and land use right	(15,889,693)	(3,062,369)
Proceeds of disposal of property and equipment	0	47,571
Advance to related party	(18,247,384)	0
Repayment from related party	18,247,384	0
Change in restricted cash	(4,897,377)	(809,344)
Cash paid for disposal of subsidiary	0	(99,915)
Net Cash Flows Provided by (Used In) Investing Activities	38,206,521	(32,939,693)
Cash Flows From Financing Activities
Proceeds from bank loans	53,895,058	38,313,044
Repayment of bank loans	(48,153,831)	(24,218,204)
Distribution to controlling shareholders in connection with plant and land use rights exchange with entity under common control	(70,781,668)	0
Repayment of capital lease	(1,779,040)	(3,624,493)
Net Cash Flows Provided By (Used In) Financing Activities	(66,819,481)	10,470,347
Effects on changes in foreign exchange rate	(1,011,717)	(623,674)
Net change in cash and cash equivalents	(22,173,673)	16,221,231
Cash and cash equivalents- beginning of the year	30,230,828	14,009,597
Cash and cash equivalents - end of the year	8,057,155	30,230,828
Supplemental Cash Flow Disclosures:
Interest paid	807,587	1,108,388
Income taxes paid	3,284,070	4,590,244
Non-cash Investing and Financing Transactions
Transfer of plant and land use right to entity under common control	17,342,372	0
Liabilities assumed in connection with the plant and land use right exchange	$ 5,351,196	$ 0