v3.26.1
Cover - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Mar. 25, 2026
Jun. 30, 2025
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2025    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2025    
Current Fiscal Year End Date --12-31    
Entity File Number 001-36747    
Entity Registrant Name Vivani Medical, Inc.    
Entity Central Index Key 0001266806    
Entity Tax Identification Number 02-0692322    
Entity Incorporation, State or Country Code DE    
Entity Address, Address Line One 1350 S. Loop Road    
Entity Address, City or Town Alameda    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 94502    
City Area Code 415    
Local Phone Number 506-8462    
Title of 12(b) Security Common Stock, par value $0.0001 per share    
Trading Symbol VANI    
Security Exchange Name NASDAQ    
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     $ 45.9
Entity Common Stock, Shares Outstanding   84,647,803  
Documents Incorporated by Reference [Text Block] Portions of the registrant’s Definitive Proxy Statement for the 2026 Annual Meeting of Stockholders (the “2026 Proxy Statement”) are incorporated herein by reference in Part III of this Annual Report on Form 10-K to the extent stated herein. The registrant intends to file a Proxy Statement pursuant to Regulation 14A with the Securities and Exchange Commission (the “SEC”) within 120 days after the end of registrant’s fiscal year end of December 31, 2025.    
Document Financial Statement Error Correction [Flag] false    
Auditor Firm ID 207    
Auditor Name BPM LLP    
Auditor Location Walnut Creek, California