SIGNIFICANT ACCOUNTING POLICIES - Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Earnings Per Share Reconciliation [Abstract]
Net income attributable to DMC Global Inc. stockholders, as reported	$ 677	$ 2,563
Adjustment of redeemable noncontrolling interest	81	(2,307)
Less: Undistributed net income available to participating securities	(24)	(5)
Numerator for basic net income per share:	734	251
Add: Undistributed net income allocated to participating securities	24	5
Less: Undistributed net income reallocated to participating securities	(24)	(5)
Numerator for diluted net income per share:	$ 734	$ 251
Denominator:
Weighted average shares outstanding for basic net income per share (in shares)	19,812,161	19,610,644
Effect of dilutive securities (in shares)	4,120	11,811
Weighted average shares outstanding for diluted net income per share (in shares)	19,816,281	19,622,455
Net income per share attributable to DMC Global Inc. stockholders
Basic (in dollars per share)	$ 0.04	$ 0.01
Diluted (in dollars per share)	$ 0.04	$ 0.01
Anti-dilutive securities (in shares)	71,813	10,052