Cover - shares	9 Months Ended
	Sep. 30, 2023	Oct. 31, 2023
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	001-36204
Entity Registrant Name	ENERGY FUELS INC.
Entity Incorporation, State or Country Code	Z4
Entity Tax Identification Number	98-1067994
Entity Address, Address Line One	225 Union Blvd., Suite 600
Entity Address, City or Town	Lakewood,
Entity Address, State or Province	CO
Entity Address, Postal Zip Code	80228
City Area Code	303
Local Phone Number	974-2140
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		161,251,942
Amendment Flag	false
Entity Central Index Key	0001385849
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
NEW YORK STOCK EXCHANGE, INC. [Member]
Entity Information [Line Items]
Title of 12(b) Security	Common Shares, no par value
Trading Symbol	UUUU
Security Exchange Name	NYSEAMER
TORONTO STOCK EXCHANGE [Member]
Entity Information [Line Items]
Title of 12(b) Security	Common shares, no par value