v3.26.1
Investment Securities and Other Investments - Summary of Amortized Cost and Fair Values of Investment Securities Available for Sale (Detail) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]    
Securities available for sale, at fair value $ 331,914 $ 332,928 [1]
Investment securities, Amortized Cost 372,209 373,178
Investment securities, Gross Unrealized Gains 290 418
Investment securities, Gross Unrealized Losses (40,585) (40,668)
Investment securities, Fair Value 331,914 332,928
Mortgage Backed Securities [Member]    
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]    
Available for sale, Amortized Cost 214,477 212,436
Available for sale, Gross Unrealized Gains 146 314
Available for sale, Gross Unrealized Losses (27,521) (27,663)
Securities available for sale, at fair value 187,102 185,087
U.S. Treasury and Agencies [Member]    
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]    
Available for sale, Amortized Cost 78,422 78,828
Available for sale, Gross Unrealized Gains 0 0
Available for sale, Gross Unrealized Losses (6,345) (6,290)
Securities available for sale, at fair value 72,077 72,538
State and Municipal [Member]    
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]    
Available for sale, Amortized Cost 49,169 49,212
Available for sale, Gross Unrealized Gains 1 2
Available for sale, Gross Unrealized Losses (4,976) (4,730)
Securities available for sale, at fair value 44,194 44,484
Corporate Bonds [Member]    
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]    
Available for sale, Amortized Cost 30,141 32,702
Available for sale, Gross Unrealized Gains 143 102
Available for sale, Gross Unrealized Losses (1,743) (1,985)
Securities available for sale, at fair value $ 28,541 $ 30,819
[1] Derived from audited December 31, 2025 Consolidated Financial Statements.