GOODWILL AND OTHER INTANGIBLE ASSETS (Details 1) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Intangible assets, balance	$ 8,168
Amortization	(828)	$ (877)
Foreign currency translation	3
Intangible assets, balance	7,343
T And D Segment [Member]
Intangible assets, balance	5,565
Amortization	(208)
Foreign currency translation	3
Intangible assets, balance	5,360
Critical Power Segment [Member]
Intangible assets, balance	2,603
Amortization	(620)
Intangible assets, balance	$ 1,983