INVENTORIES (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Inventory [Line Items]
Raw materials	$ 10,520	$ 11,217
Work in process	527	397
Finished Goods	21,909	26,807
Total inventory	32,956	38,421
Finished goods, consigned	$ 2,100	8,200
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Inventory [Line Items]
Total inventory		$ 5,716