v3.26.1
Cover - USD ($)
 12 Months Ended
Dec. 31, 2025
Mar. 16, 2026
Jun. 30, 2025
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2025    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-41068    
Entity Registrant Name BAYFIRST FINANCIAL CORP.    
Entity Incorporation, State or Country Code FL    
Entity Tax Identification Number 59-3665079    
Entity Address, Address Line One 700 Central Avenue    
Entity Address, City or Town St. Petersburg    
Entity Address, State or Province FL    
Entity Address, Postal Zip Code 33701    
City Area Code 727    
Local Phone Number 440-6848    
Title of 12(b) Security Common stock    
Trading Symbol BAFN    
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 true    
Entity Ex Transition Period false    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 49,311,868
Entity Common Stock, Shares Outstanding   4,108,072  
Entity Central Index Key 0001649739    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Amendment Flag false