SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Principles of Consolidation and Variable Interest Entity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Principles of Consolidation [Abstract]
Investment in joint venture	$ 494	$ 514
Variable Interest Entity [Line Items]
Cash and cash equivalents	5,245	7,087	$ 2,160
Total net revenue	72,788	72,589
Net (loss) income	(4,539)	820
Biox [Member]
Variable Interest Entity [Line Items]
Cash and cash equivalents	41	13
Total assets	1,599	1,451
Total liabilities	1,745	1,133
Total net revenue	1,597	1,850
Net (loss) income	$ (524)	$ 185