SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($)			12 Months Ended
	Dec. 18, 2015	Feb. 23, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Inventory, Net [Abstract]
Inventory valuation reserves			$ 3,682,000	$ 3,117,000
Asset Impairments [Abstract]
Impairment of long-lived assets				3,946	$ 756,000
Goodwill [Abstract]
Goodwill impairment charge			(11,464,000)	0	0
Goodwill			$ 17,190,000	32,762,000	37,970,000
Purchased Intangible Assets [Abstract]
Weighted average amortization period			12 years
Other Assets [Abstract]
Net deferred debt issuance costs			$ 674,000	203,000
Debt issuance costs incurred			1,222,000	0	0
Customer Advances [Abstract]
Customer advances			$ 2,396,000	3,510,000
Revolving loan [Member]
Other Assets [Abstract]
Net deferred debt issuance costs	$ 508,000	$ 162,000
Write off of deferred debt issuance costs	508,000	32,000
Syndicated credit facility 2015 [Member]
Other Assets [Abstract]
Debt issuance costs incurred		1,042,000
Amended credit facility 2015 [Member]
Other Assets [Abstract]
Debt issuance costs incurred	$ 180,000
Term			5 years
NobelClad [Member]
Goodwill [Abstract]
Goodwill impairment charge			$ 0
Goodwill			17,190,000	19,418,000	22,238,000
NobelClad [Member] | Restructuring expenses [Member]
Asset Impairments [Abstract]
Impairment of intangible assets			205,000
DynaEnergetics [Member]
Goodwill [Abstract]
Goodwill impairment charge			(11,464,000)
Goodwill			$ 0	$ 13,344,000	$ 15,732,000
Line of Credit [Member] | Syndicated credit facility 2015 [Member]
Other Assets [Abstract]
Maximum borrowing capacity		$ 150,000,000
Term		5 years