INVENTORIES, NET (Schedule of Inventories) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Dec. 31, 2012
INVENTORIES, NET [Abstract]
Work in Process	$ 3,017	$ 2,228
Parts and supplies	4,315	2,906
Finished goods	4,500	4,881
Inventories	11,832	10,015
Less - inventory reserve	(1,960)	(1,981)	(2,325)
Inventories, net	$ 9,872	$ 8,034