Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2023	Mar. 19, 2024	Jun. 30, 2023
Document And Entity Information
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2023
Entity File Number	001-33404
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, par value $0.001 per share
Trading Symbol	WWR
Security Exchange Name	NYSEAMER
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filer	No
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
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 42,172,686
Entity Common Stock, Shares Outstanding		56,901,933
Documents incorporated by reference	specified portions of Westwater Resources, Inc.’s Definitive Proxy Statement on Schedule 14A relating to its 2024 Annual Meeting of Stockholders are incorporated by reference into Part III where indicated.  Westwater Resource, Inc.’s Definitive Proxy Statement will be filed with the U.S. Securities and Exchange Commission within 120 days after the end of the fiscal year to which this report relates.
Auditor Name	Moss Adams LLP
Auditor Firm ID	659
Auditor Location	Denver, Colorado
Entity Central Index Key	0000839470
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Amendment Flag	false