GOODWILL AND OTHER INTANGIBLE ASSETS (Details 1) - USD ($)		3 Months Ended	12 Months Ended
		Mar. 31, 2016	Dec. 31, 2015
Other intangible assets:
Cost		$ 15,253,000	$ 15,277,000
Accumulated amortization		4,485,000	4,179,000
Net book value		10,768,000	11,098,000
Customer relationships [Member]
Other intangible assets:
Cost	[1]	11,276,000	11,285,000
Accumulated amortization	[1]	3,695,000	3,486,000
Net book value	[1]	$ 7,581,000	$ 7,799,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		9 years 9 months 18 days	10 years
Trademarks and trade names [Member]
Other intangible assets:
Cost	[1]	$ 2,003,000	$ 2,015,000
Accumulated amortization	[1]	0	0
Net book value	[1]	$ 2,003,000	$ 2,015,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	[2]	0 years	0 years
Engineering drawings [Member]
Other intangible assets:
Cost		$ 410,000	$ 410,000
Accumulated amortization		168,000	159,000
Net book value		$ 242,000	$ 251,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		8 years 4 months 24 days	8 years 6 months
Non-compete agreements [Member]
Other intangible assets:
Cost	[1]	$ 359,000	$ 362,000
Accumulated amortization	[1]	156,000	134,000
Net book value	[1]	$ 203,000	$ 228,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		2 years 6 months	2 years 8 months 12 days
Patents [Member]
Other intangible assets:
Cost		$ 1,205,000	$ 1,205,000
Accumulated amortization		466,000	400,000
Net book value		$ 739,000	$ 805,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		5 years 9 months 18 days	5 years 9 months 18 days

[1] A portion of these intangibles are maintained in a foreign currency, and are therefore subject to foreign exchange rate fluctuations.

[2] Have indefinite lives.