LINE OF CREDIT, SHORT TERM DEBT AND BANK ACCEPTANCE NOTES (Schedule of Bank Acceptance Notes) (Details) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Mar. 25, 2016	Oct. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Oct. 31, 2015
Citic Bank [Member]
Short-term Debt [Line Items]
Beginning maturity date	Mar. 25, 2017
Ending maturity date	Apr. 26, 2017
Collateral amount	$ 4,400
Face amount	$ 5,300				$ 3,100
Maturity date		Apr. 30, 2016
Notes Payable to Banks [Member]
Short-term Debt [Line Items]
Bank acceptance notes payable			$ 10,727	$ 14,366
Restricted cash deposit			8,600	9,000
Notes Payable to Banks [Member] | China Everbright Bank [Member]
Short-term Debt [Line Items]
Bank acceptance notes payable			5,760	7,086
Collateral amount			$ 2,000
Required cash deposit			50.00%
Maturity date			Jun. 30, 2017
Notes Payable to Banks [Member] | Citic Bank [Member]
Short-term Debt [Line Items]
Bank acceptance notes payable			$ 4,967	6,428
Beginning maturity date			Mar. 31, 2017
Ending maturity date			Apr. 30, 2017
Required cash deposit			100.00%
Notes Payable to Banks [Member] | Shanghai Pu Dong Development Bank [Member]
Short-term Debt [Line Items]
Bank acceptance notes payable				$ 852
Beginning maturity date			Jan. 31, 2016
Ending maturity date			May 31, 2016
Required cash deposit			100.00%
Notes Payable to Banks [Member] | Minimum [Member]
Short-term Debt [Line Items]
Required cash deposit			50.00%
Notes Payable to Banks [Member] | Maximum [Member]
Short-term Debt [Line Items]
Required cash deposit			100.00%