CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net sales	$ 260,115	$ 229,161	$ 397,550
Cost of products sold	200,635	172,308	252,627
Gross profit	59,480	56,853	144,923
Costs and expenses:
General and administrative expenses	36,276	29,150	37,976
Selling and distribution expenses	22,507	23,863	27,475
Amortization of purchased intangible assets	1,391	1,449	1,544
Acquisition expenses	1,581	0	0
Restructuring expenses, net and asset impairments	127	3,387	19,503
Total costs and expenses	61,882	57,849	86,498
Operating (loss) income	(2,402)	(996)	58,425
Other income (expense):
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
Income tax (benefit) provision	(1,544)	(548)	22,661
Net (loss) income	(1,010)	(1,412)	34,041
Less: Net loss attributable to redeemable noncontrolling interest	(808)	0	0
Net (loss) income attributable to DMC Global Inc. stockholders	$ (202)	$ (1,412)	$ 34,041
Net (loss) income per share attributable to DMC Global Inc. stockholders:
Basic (in dollars per share)	$ (0.26)	$ (0.10)	$ 2.29
Diluted (in dollars per share)	$ (0.26)	$ (0.10)	$ 2.28
Weighted-average shares outstanding:
Basic (in shares)	17,610,711	14,790,296	14,579,608
Diluted (in shares)	17,610,711	14,790,296	14,655,350
Dividends declared per common share (in dollars per share)	$ 0	$ 0.125	$ 0.29
Reconciliation to net (loss) income attributable to DMC Global Inc. stockholders
Net (loss) income attributable to DMC Global Inc.	$ (202)	$ (1,412)	$ 34,041
Adjustment of redeemable noncontrolling interest to redemption value	4,424	0	0
Net (loss) income attributable to DMC Global Inc. common shareholders after adjustment of redeemable noncontrolling interest	$ (4,626)	$ (1,412)	$ 34,041