v3.26.3
Cover
Sep. 14, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Sep. 14, 2026
Entity File Number 001-33404
Entity Registrant Name WESTWATER RESOURCES, INC.
Entity Central Index Key 0000839470
Entity Tax Identification Number 75-2212772
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 7000 East Belleview
Entity Address, Address Line Two Suite 220
Entity Address, City or Town Greenwood Village
Entity Address, State or Province CO
Entity Address, Postal Zip Code 80111
City Area Code 303
Local Phone Number 531-0516
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.001 par value
Trading Symbol WWR
Security Exchange Name NYSEAMER
Entity Emerging Growth Company false