BUSINESS SEGMENTS - Disaggregation of Revenue by Geographic Location (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Net sales	$ 55,658	$ 73,564
Customer Concentration Risk | Revenue from Contract with Customer Benchmark | One Customer
Disaggregation of Revenue [Line Items]
Concentration risk percentage	10.00%	15.00%
DynaEnergetics
Disaggregation of Revenue [Line Items]
Net sales	$ 38,172	$ 53,220
DynaEnergetics | United States
Disaggregation of Revenue [Line Items]
Net sales	27,831	46,271
DynaEnergetics | Canada
Disaggregation of Revenue [Line Items]
Net sales	3,702	668
DynaEnergetics | Hong Kong
Disaggregation of Revenue [Line Items]
Net sales	1,190	136
DynaEnergetics | Egypt
Disaggregation of Revenue [Line Items]
Net sales	1,053	1,311
DynaEnergetics | Oman
Disaggregation of Revenue [Line Items]
Net sales	781	180
DynaEnergetics | Indonesia
Disaggregation of Revenue [Line Items]
Net sales	571	479
DynaEnergetics | Pakistan
Disaggregation of Revenue [Line Items]
Net sales	509	345
DynaEnergetics | Ukraine
Disaggregation of Revenue [Line Items]
Net sales	436	302
DynaEnergetics | India
Disaggregation of Revenue [Line Items]
Net sales	393	316
DynaEnergetics | Romania
Disaggregation of Revenue [Line Items]
Net sales	322	104
DynaEnergetics | Germany
Disaggregation of Revenue [Line Items]
Net sales	314	300
DynaEnergetics | Rest of the world
Disaggregation of Revenue [Line Items]
Net sales	1,070	2,808
NobelClad
Disaggregation of Revenue [Line Items]
Net sales	17,486	20,344
NobelClad | United States
Disaggregation of Revenue [Line Items]
Net sales	8,347	9,042
NobelClad | Canada
Disaggregation of Revenue [Line Items]
Net sales	1,024	1,768
NobelClad | Russia
Disaggregation of Revenue [Line Items]
Net sales	1,021	0
NobelClad | South Korea
Disaggregation of Revenue [Line Items]
Net sales	886	990
NobelClad | France
Disaggregation of Revenue [Line Items]
Net sales	669	1,491
NobelClad | United Arab Emirates
Disaggregation of Revenue [Line Items]
Net sales	664	739
NobelClad | India
Disaggregation of Revenue [Line Items]
Net sales	649	77
NobelClad | Netherlands
Disaggregation of Revenue [Line Items]
Net sales	591	547
NobelClad | Australia
Disaggregation of Revenue [Line Items]
Net sales	578	249
NobelClad | Italy
Disaggregation of Revenue [Line Items]
Net sales	435	92
NobelClad | Spain
Disaggregation of Revenue [Line Items]
Net sales	413	1,247
NobelClad | Germany
Disaggregation of Revenue [Line Items]
Net sales	390	986
NobelClad | Norway
Disaggregation of Revenue [Line Items]
Net sales	283	960
NobelClad | Taiwan
Disaggregation of Revenue [Line Items]
Net sales	278	0
NobelClad | China
Disaggregation of Revenue [Line Items]
Net sales	239	87
NobelClad | Rest of the world
Disaggregation of Revenue [Line Items]
Net sales	$ 1,019	$ 2,069