INVENTORIES, NET (Schedule of Inventories) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Dec. 31, 2013
INVENTORIES, NET [Abstract]
Work in Process	$ 1,914	$ 3,054
Parts and supplies	2,868	3,601
Finished goods	4,128	3,105
Inventories	8,910	9,760
Less - inventory reserve	(1,301)	(1,380)	$ (1,981)
Inventories, net	$ 7,609	$ 8,380