INVENTORIES, NET (Schedule of Inventories) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Work in Process	$ 2,025	$ 2,237
Parts and supplies	4,020	3,616
Finished goods	2,117	3,186
Inventories	8,162	9,039
Less - inventory reserve	(1,290)	(1,296)	$ (1,380)
Inventories, net	$ 6,872	$ 7,743