v3.25.2
Document And Entity Information - shares
 6 Months Ended
Jun. 30, 2025
Sep. 12, 2025
Document And Entity Information [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Jun. 30, 2025  
Current Fiscal Year End Date --12-31  
Entity Registrant Name AVIDBANK HOLDINGS, INC.  
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  
Entity Address, Address Line Two 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 No  
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   10,936,020
Document Fiscal Year Focus 2025  
Entity Central Index Key 0001443575  
Amendment Flag false  
Document Fiscal Period Focus Q2