v3.26.1
Document And Entity Information - shares
 3 Months Ended
Mar. 31, 2026
Apr. 30, 2026
Document Information [Line Items]    
Entity Central Index Key 0001443575  
Entity Registrant Name Avidbank Holdings, Inc.  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2026  
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2026  
Document Transition Report false  
Entity File Number 001-42792  
Entity Incorporation, State or Country Code CA  
Entity Tax Identification Number 26-1731009  
Entity Address, Address Line One 1732 North First Street 6th Floor  
Entity Address, City or Town San Jose  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 95112  
City Area Code 408  
Local Phone Number 200-7390  
Title of 12(b) Security Common Stock, No Par Value per Share  
Trading Symbol AVBH  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   10,955,167