BUSINESS SEGMENTS - Segment Operations and Assets (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) segment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Segment Reporting [Abstract]
Number of segments | segment	3
Segment Operations [Abstract]
Net sales	$ 260,115	$ 229,161	$ 397,550
Segment operating income before income taxes	(2,402)	(996)	58,425
Other income (expense), net	152	(233)	(169)
Interest expense, net	(304)	(731)	(1,554)
(Loss) income before income taxes	(2,554)	(1,960)	56,702
Consolidated depreciation and amortization	12,694	11,081	9,860
Consolidated acquisition of property, plant and equipment	8,659	13,853	27,210
Segment Assets [Abstract]
Assets	864,412	279,645
Cash and cash equivalents	30,810	28,187
Deferred tax assets	12,090	10,668
Corporate property, plant and equipment	$ 122,078	109,411
Arcadia
Segment Reporting [Abstract]
Percentage of ownership acquired	60.00%
Operating segments
Segment Operations [Abstract]
Segment operating income before income taxes	$ 15,998	13,036	75,974
Consolidated depreciation and amortization	12,348	10,767	9,421
Consolidated acquisition of property, plant and equipment	8,227	13,716	25,345
Segment Assets [Abstract]
Assets	711,226	192,983
Segment reconciling items
Segment Operations [Abstract]
Unallocated corporate expenses	(11,826)	(8,357)	(12,345)
Stock-based compensation	(6,574)	(5,675)	(5,204)
Segment Assets [Abstract]
Cash and cash equivalents	30,810	28,187
Marketable securities	0	25,736
Prepaid expenses and other assets	111,606	24,125
Deferred tax assets	6,930	4,582
Corporate and other
Segment Operations [Abstract]
Consolidated depreciation and amortization	346	314	439
Consolidated acquisition of property, plant and equipment	432	137	1,865
Segment Assets [Abstract]
Corporate property, plant and equipment	3,840	4,032
Arcadia | Operating segments
Segment Operations [Abstract]
Segment operating income before income taxes	(2,020)	0	0
Consolidated depreciation and amortization	415	0	0
Consolidated acquisition of property, plant and equipment	42	0	0
Segment Assets [Abstract]
Assets	501,166	0
DynaEnergetics
Segment Operations [Abstract]
Net sales	175,356	146,395	310,424
DynaEnergetics | Operating segments
Segment Operations [Abstract]
Segment operating income before income taxes	8,235	6,150	68,781
Consolidated depreciation and amortization	8,126	7,263	6,375
Consolidated acquisition of property, plant and equipment	5,455	11,741	19,785
Segment Assets [Abstract]
Assets	156,593	132,775
NobelClad
Segment Operations [Abstract]
Net sales	84,759	82,766	87,126
NobelClad | Operating segments
Segment Operations [Abstract]
Segment operating income before income taxes	9,783	6,886	7,193
Consolidated depreciation and amortization	3,807	3,504	3,046
Consolidated acquisition of property, plant and equipment	2,730	1,975	$ 5,560
Segment Assets [Abstract]
Assets	$ 53,467	$ 60,208