INTERIM STATEMENT PRESENTATION, Variable Interest Entities (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Variable Interest Entity [Line Items]
Cash and cash equivalents	$ 5,840	$ 6,713	$ 5,245	$ 7,087
Total net revenue	17,537	16,374
Net income (loss)	(2,069)	(2,131)	(4,539)
Biox [Member]
Variable Interest Entity [Line Items]
Cash and cash equivalents	70		41
Total assets	1,743		1,599
Total liabilities	1,872		$ 1,745
Total net revenue	406	300
Net income (loss)	$ 1	$ (42)