RESTRUCTURING - Restructuring Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 1,202	$ 4,063
Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	758	2,626
Asset Impairment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	0	205
Contract Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	386	538
Equipment Moving Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	15	867
Other Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	43	(173)
Operating segments [Member] | NobelClad [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses		750
Operating segments [Member] | NobelClad [Member] | Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses		238
Operating segments [Member] | NobelClad [Member] | Asset Impairment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses		0
Operating segments [Member] | NobelClad [Member] | Contract Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses		40
Operating segments [Member] | NobelClad [Member] | Equipment Moving Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses		476
Operating segments [Member] | NobelClad [Member] | Other Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses		(4)
Operating segments [Member] | DynaEnergetics [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	1,128	1,660
Operating segments [Member] | DynaEnergetics [Member] | Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	684	735
Operating segments [Member] | DynaEnergetics [Member] | Asset Impairment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	0	205
Operating segments [Member] | DynaEnergetics [Member] | Contract Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	386	498
Operating segments [Member] | DynaEnergetics [Member] | Equipment Moving Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	15	391
Operating segments [Member] | DynaEnergetics [Member] | Other Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	43	(169)
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	74	1,653
Corporate [Member] | Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	74	1,653
Corporate [Member] | Asset Impairment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	0	0
Corporate [Member] | Contract Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	0	0
Corporate [Member] | Equipment Moving Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	0	0
Corporate [Member] | Other Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 0	$ 0