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Investment Securities - Available-for-Sale and Held-to-Maturity (Details) - USD ($)
$ in Thousands
Sep. 30, 2024
Dec. 31, 2023
Schedule Of Investments [Line Items]    
Available-for-sale, amortized cost $ 149,005 $ 144,893
Available-for-sale, gross unrealized gains 1,826 738
Available-for-sale, gross unrealized losses (6,556) (10,066)
Investment securities available-for-sale, at fair value 144,275 135,565
Held-to-maturity, amortized cost 769 1,104
Held-to-maturity, gross unrealized losses (33) (63)
Held-to-maturity, estimated fair value 736 1,041
Residential Mortgage Backed Securities [Member]    
Schedule Of Investments [Line Items]    
Available-for-sale, amortized cost 61,314 47,221
Available-for-sale, gross unrealized gains 1,416 580
Available-for-sale, gross unrealized losses (1,971) (3,073)
Investment securities available-for-sale, at fair value 60,759 44,728
Commercial Mortgage Backed Securities [Member]    
Schedule Of Investments [Line Items]    
Available-for-sale, amortized cost 12,893 9,446
Available-for-sale, gross unrealized gains 107  
Available-for-sale, gross unrealized losses (179) (406)
Investment securities available-for-sale, at fair value 12,821 9,040
Held-to-maturity, amortized cost 313 575
Held-to-maturity, gross unrealized losses (9) (22)
Held-to-maturity, estimated fair value 304 553
US Government Agencies Debt Securities [Member]    
Schedule Of Investments [Line Items]    
Available-for-sale, amortized cost 11,439 11,849
Available-for-sale, gross unrealized gains 298 158
Available-for-sale, gross unrealized losses (463) (727)
Investment securities available-for-sale, at fair value 11,274 11,280
Held-to-maturity, amortized cost 414 471
Held-to-maturity, gross unrealized losses (21) (34)
Held-to-maturity, estimated fair value 393 437
US States and Political Subdivisions Debt Securities [Member]    
Schedule Of Investments [Line Items]    
Available-for-sale, amortized cost 1,588 1,621
Available-for-sale, gross unrealized losses (33) (63)
Investment securities available-for-sale, at fair value 1,555 1,558
Held-to-maturity, amortized cost 42 58
Held-to-maturity, gross unrealized losses (3) (7)
Held-to-maturity, estimated fair value 39 51
Corporate Notes [Member]    
Schedule Of Investments [Line Items]    
Available-for-sale, amortized cost 17,755 17,757
Available-for-sale, gross unrealized gains 5  
Available-for-sale, gross unrealized losses (2,243) (2,800)
Investment securities available-for-sale, at fair value 15,517 14,957
US Treasury Securities [Member]    
Schedule Of Investments [Line Items]    
Available-for-sale, amortized cost 44,016 56,999
Available-for-sale, gross unrealized losses (1,667) (2,997)
Investment securities available-for-sale, at fair value $ 42,349 $ 54,002