BANK ACCEPTANCE NOTES (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Bank acceptance notes
Balance as of end of period	$ 2,138
Bank acceptance notes
Bank acceptance notes
Received from customers	4,485	$ 873
Converted to cash	(1,140)	(149)
Paid to suppliers	(1,207)	$ (724)
Balance as of end of period	$ 2,138
Annual effective discount rate (as percent)	5.25%