INVENTORY (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Inventory Disclosure [Abstract]
Raw materials and component parts, net of reserves of $1,523 and $2,155 at September 30, 2017 and December 31, 2016, respectively	$ 15,974	$ 12,570
Work-in-progress	3,516	1,502
Finished goods	4,300	4,996
Total inventory	23,790	19,068
Raw materials and component parts, reserves	$ 1,523	$ 2,155