INVENTORIES, NET (Schedule of Inventories) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Dec. 31, 2013
INVENTORIES, NET [Abstract]
Work in Process	$ 2,906	$ 3,054
Parts and supplies	3,819	3,601
Finished goods	2,614	3,105
Inventories	9,339	9,760
Less - inventory reserve	(1,265)	(1,380)	$ (1,981)
Inventories, net	$ 8,074	$ 8,380