Document And Entity Information - shares	6 Months Ended
	Dec. 31, 2021	Feb. 08, 2022
Document Information [Line Items]
Entity Central Index Key	0000910679
Entity Registrant Name	WVS Financial Corp
Amendment Flag	false
Current Fiscal Year End Date	--06-30
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2021
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Dec. 31, 2021
Document Transition Report	false
Entity File Number	0-22444
Entity Incorporation, State or Country Code	PA
Entity Tax Identification Number	25-1710500
Entity Address, Address Line One	9001 Perry Highway
Entity Address, City or Town	Pittsburgh
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	15237
City Area Code	412
Local Phone Number	364-1911
Entity 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
Title of 12(b) Security	Common Stock, par value $.01
Trading Symbol	WVFC
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		1,883,114