v3.26.1
Goodwill and Core Deposit Intangible - Additional Information (Detail) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Goodwill And Intangible Assets Disclosure [Line Items]    
Goodwill $ 14,381 $ 14,381
Core deposit intangible assets $ 2,580 $ 2,776
Percentage of fair value of reporting unit including goodwill 50.00%  
Percentage of probability of fair value of reporting unit including goodwill 50.00%  
Core Deposits [Member]    
Goodwill And Intangible Assets Disclosure [Line Items]    
Intangible assets amortized year 10 years