INVENTORIES, NET (Schedule of Inventories) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Work in Process	$ 2,701	$ 2,237
Parts and supplies	3,805	3,616
Finished goods	2,153	3,186
Inventories	8,659	9,039
Less - inventory reserve	(1,486)	(1,296)	$ (1,380)
Inventories, net	$ 7,173	$ 7,743