Cover - shares	9 Months Ended
	Sep. 30, 2023	Oct. 30, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	001-14775
Entity Registrant Name	DMC GLOBAL INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	84-0608431
Entity Address, Address Line One	11800 Ridge Parkway
Entity Address, Address Line Two	Suite 300
Entity Address, City or Town	Broomfield
Entity Address, State or Province	CO
Entity Address, Postal Zip Code	80021
City Area Code	303
Local Phone Number	665-5700
Title of 12(b) Security	Common Stock, $0.05 Par Value
Trading Symbol	BOOM
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		19,761,581
Entity Central Index Key	0000034067
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Amendment Flag	false