BUSINESS SEGMENTS - Geographic Information (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment information [Line Items]
Property, plant and equipment, net	$ 109,411				$ 108,234				$ 109,411	$ 108,234
Net sales	57,113	$ 55,281	$ 43,203	$ 73,564	86,367	$ 100,094	$ 110,954	$ 100,135	229,161	397,550	$ 326,429
DynaEnergetics
Segment information [Line Items]
Net sales									146,395	310,424	237,448
NobelClad
Segment information [Line Items]
Net sales									82,766	87,126	88,981
United States
Segment information [Line Items]
Property, plant and equipment, net	77,283				76,957				77,283	76,957
United States | DynaEnergetics
Segment information [Line Items]
Net sales									110,903	264,892	184,576
United States | NobelClad
Segment information [Line Items]
Net sales									38,311	44,934	37,272
India | DynaEnergetics
Segment information [Line Items]
Net sales									5,814	588	1,863
India | NobelClad
Segment information [Line Items]
Net sales									1,421	1,243	2,428
Canada
Segment information [Line Items]
Property, plant and equipment, net	102				210				102	210
Canada | DynaEnergetics
Segment information [Line Items]
Net sales									3,830	11,491	23,006
Canada | NobelClad
Segment information [Line Items]
Net sales									6,597	6,196	7,120
Egypt | DynaEnergetics
Segment information [Line Items]
Net sales									3,413	3,356	314
Iraq | DynaEnergetics
Segment information [Line Items]
Net sales									3,287	1,104	2,419
Oman | DynaEnergetics
Segment information [Line Items]
Net sales									2,551	2,922	1,277
Indonesia | DynaEnergetics
Segment information [Line Items]
Net sales									1,832	1,686	1,201
Kuwait | DynaEnergetics
Segment information [Line Items]
Net sales									1,716	1,068	2,014
Ukraine | DynaEnergetics
Segment information [Line Items]
Net sales									1,591	3,824	3,594
Australia | DynaEnergetics
Segment information [Line Items]
Net sales									1,148	654	361
Australia | NobelClad
Segment information [Line Items]
Net sales									1,519	1,498	512
Algeria | DynaEnergetics
Segment information [Line Items]
Net sales									1,068	645	1,630
Malaysia | DynaEnergetics
Segment information [Line Items]
Net sales									1,049	871	1,063
Pakistan | DynaEnergetics
Segment information [Line Items]
Net sales									876	850	364
United Arab Emirates | DynaEnergetics
Segment information [Line Items]
Net sales									840	850	3,074
United Arab Emirates | NobelClad
Segment information [Line Items]
Net sales									4,008	1,949	1,019
Germany
Segment information [Line Items]
Property, plant and equipment, net	31,924				29,499				31,924	29,499
Germany | DynaEnergetics
Segment information [Line Items]
Net sales									605	828	419
Germany | NobelClad
Segment information [Line Items]
Net sales									5,100	4,072	3,649
Rest of the world
Segment information [Line Items]
Property, plant and equipment, net	17				23				17	23
Rest of the world | DynaEnergetics
Segment information [Line Items]
Net sales									5,872	14,795	10,273
Rest of the world | NobelClad
Segment information [Line Items]
Net sales									3,444	6,733	6,364
China | NobelClad
Segment information [Line Items]
Net sales									5,389	0	12,503
Italy | NobelClad
Segment information [Line Items]
Net sales									1,220	770	1,618
Russia
Segment information [Line Items]
Property, plant and equipment, net	0				1,495				0	1,495
France
Segment information [Line Items]
Property, plant and equipment, net	$ 85				$ 50				85	50
France | NobelClad
Segment information [Line Items]
Net sales									2,895	3,591	4,491
Spain | NobelClad
Segment information [Line Items]
Net sales									2,670	1,706	1,083
Norway | NobelClad
Segment information [Line Items]
Net sales									2,215	4,496	679
South Korea | NobelClad
Segment information [Line Items]
Net sales									1,972	2,964	2,263
Netherlands | NobelClad
Segment information [Line Items]
Net sales									1,765	2,026	2,237
Sweden | NobelClad
Segment information [Line Items]
Net sales									1,569	2,013	2,337
Belgium | NobelClad
Segment information [Line Items]
Net sales									1,213	2,365	3,386
South Africa | NobelClad
Segment information [Line Items]
Net sales									870	5	0
Bahrain | NobelClad
Segment information [Line Items]
Net sales									$ 588	$ 565	$ 20
One Customer | Customer Concentration Risk | Revenue from Contract with Customer Benchmark
Segment information [Line Items]
Concentration risk, percentage									12.00%