v3.25.2
Cover - USD ($)
 12 Months Ended
Jun. 30, 2025
Aug. 15, 2025
Dec. 31, 2024
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Jun. 30, 2025    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2025    
Current Fiscal Year End Date --06-30    
Entity File Number 001-39015    
Entity Registrant Name BIOVIE INC.    
Entity Central Index Key 0001580149    
Entity Tax Identification Number 46-2510769    
Entity Incorporation, State or Country Code NV    
Entity Address, Address Line One 680 W Nye Lane    
Entity Address, Address Line Two Suite 204    
Entity Address, City or Town Carson City    
Entity Address, State or Province NV    
Entity Address, Postal Zip Code 89703    
City Area Code 775    
Local Phone Number 888-3162    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
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    
Entity Public Float     $ 32,006,880
Entity Common Stock, Shares Outstanding   7,534,225  
Documents Incorporated by Reference [Text Block] Portions of the Registrant’s definitive proxy statement relating to its 2025 annual meeting of stockholders (the “2025 Proxy Statement”) are incorporated by reference into Part III of this Annual Report on Form 10-K where indicated.    
Document Financial Statement Error Correction [Flag] false    
Auditor Firm ID 274    
Auditor Name EisnerAmper LLP    
Auditor Location Iselin    
Class A Common Stock 00001 Par Value Per Share [Member]      
Title of 12(b) Security Class A Common Stock, $0.0001 par value per share    
Trading Symbol BIVI    
Security Exchange Name NASDAQ    
Warrants To Purchase Class A Common Stock 00001 Par Value Per Share [Member]      
Title of 12(b) Security Warrants to purchase Class A Common Stock, $0.0001 par value per share    
Trading Symbol BIVIW    
Security Exchange Name NASDAQ