Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2022	May 10, 2022
Document And Entity Information
Document Type	10-Q
Document Transition Report	false
Document Quarterly Report	true
Entity File Number	001-33404
Document Period End Date	Mar. 31, 2022
Entity Registrant Name	WESTWATER RESOURCES, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	75-2212772
Entity Address, Address Line One	6950 S. Potomac Street, Suite 300
Entity Address, City or Town	Centennial
Entity Address, State or Province	CO
Entity Address, Postal Zip Code	80112
City Area Code	303
Local Phone Number	531-0516
Title of 12(b) Security	Common Stock, $0.001 par value
Trading Symbol	WWR
Security Exchange Name	NYSEAMER
Entity's Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		47,193,702
Entity Central Index Key	0000839470
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q1
Amendment Flag	false