GOODWILL AND OTHER INTANGIBLE ASSETS (Details 1) - USD ($)		9 Months Ended	12 Months Ended
		Sep. 30, 2017	Dec. 31, 2016
Other intangible assets:
Cost		$ 11,333,000	$ 8,597,000
Accumulated amortization		2,624,000	1,991,000
Net book value		8,709,000	6,606,000
Customer relationships [Member]
Other intangible assets:
Cost	[1]	6,834,000	5,143,000
Accumulated amortization	[1]	1,427,000	1,022,000
Net book value	[1]	$ 5,407,000	$ 4,121,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		10 years 4 months 24 days	9 years 3 months 18 days
Trademarks and trade names one [Member]
Other intangible assets:
Cost	[1]	$ 2,326,000	$ 1,507,000
Accumulated amortization	[1]	0	0
Net book value	[1]	$ 2,326,000	$ 1,507,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		13 years 9 months 18 days	14 years 6 months
Engineering drawings [Member]
Other intangible assets:
Cost		$ 330,000	$ 330,000
Accumulated amortization		168,000	148,000
Net book value		$ 162,000	$ 182,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		8 years 3 months 18 days	8 years 9 months 18 days
Non-compete agreements [Member]
Other intangible assets:
Cost	[1]	$ 238,000	$ 212,000
Accumulated amortization	[1]	201,000	150,000
Net book value	[1]	$ 37,000	$ 62,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		1 year 10 months 24 days	1 year 2 months 12 days
Patents [Member]
Other intangible assets:
Cost	[2]	$ 1,405,000	$ 1,205,000
Accumulated amortization	[2]	813,000	666,000
Net book value	[2]	$ 592,000	$ 539,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		9 years	6 years 1 month 6 days
Trademarks And Trade Names Two [Member]
Other intangible assets:
Cost	[3]	$ 200,000	$ 200,000
Accumulated amortization	[3]	15,000	5,000
Net book value	[3]	$ 185,000	$ 195,000

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

[2] The $200,000 increase represents a patent acquired during the third quarter of 2017.

[3] These were previously considered an indefinite-lived intangible asset of Hy-Tech. However, as the result of a prior impairment, the Company began amortizing these intangible assets over a 15 year useful life.