v3.26.1
Securities Available-for-Sale - Summary of gross unrealized losses and fair value for those investments with unrealized losses (Detail)
$ in Thousands
Jun. 30, 2026
USD ($)
Number
Dec. 31, 2025
USD ($)
Number
Debt Securities, Available-for-Sale [Line Items]    
Less than 12 Months, Number of Securities | Number 13 8
Less than 12 Months, Fair Value $ 19,307 $ 14,921
Less than 12 Months, Unrealized Losses $ (369) $ (185)
More than 12 Months, Number of Securities | Number 87 93
More than 12 Months, Fair Value $ 59,505 $ 67,907
More than 12 Months, Unrealized Losses (7,437) (7,879)
Total, Fair Value 78,812 82,828
Total, Unrealized Losses $ (7,806) $ (8,064)
U.S. Government-sponsored enterprises obligations [Member]    
Debt Securities, Available-for-Sale [Line Items]    
More than 12 Months, Number of Securities | Number 3 3
More than 12 Months, Fair Value $ 1,430 $ 1,453
More than 12 Months, Unrealized Losses (172) (162)
Total, Fair Value 1,430 1,453
Total, Unrealized Losses $ (172) $ (162)
U.S. Government agency small business administration pools guaranteed by the SBA [Member]    
Debt Securities, Available-for-Sale [Line Items]    
Less than 12 Months, Number of Securities | Number 2 1
Less than 12 Months, Fair Value $ 816 $ 593
Less than 12 Months, Unrealized Losses $ (31) $ (11)
More than 12 Months, Number of Securities | Number 10 12
More than 12 Months, Fair Value $ 6,430 $ 8,211
More than 12 Months, Unrealized Losses (668) (705)
Total, Fair Value 7,246 8,804
Total, Unrealized Losses $ (699) $ (716)
Collateralized mortgage obligations issued by the FHLMC, FNMA and GNMA [Member]    
Debt Securities, Available-for-Sale [Line Items]    
Less than 12 Months, Number of Securities | Number 4 1
Less than 12 Months, Fair Value $ 5,005 $ 818
Less than 12 Months, Unrealized Losses $ (71) $ (24)
More than 12 Months, Number of Securities | Number 6 9
More than 12 Months, Fair Value $ 4,834 $ 10,434
More than 12 Months, Unrealized Losses (356) (348)
Total, Fair Value 9,839 11,252
Total, Unrealized Losses $ (427) $ (372)
Residential mortgage backed securities [Member]    
Debt Securities, Available-for-Sale [Line Items]    
Less than 12 Months, Number of Securities | Number 6 4
Less than 12 Months, Fair Value $ 13,080 $ 9,805
Less than 12 Months, Unrealized Losses $ (263) $ (148)
More than 12 Months, Number of Securities | Number 28 29
More than 12 Months, Fair Value $ 15,851 $ 17,128
More than 12 Months, Unrealized Losses (3,126) (3,070)
Total, Fair Value 28,931 26,933
Total, Unrealized Losses $ (3,389) $ (3,218)
Municipal bonds [Member]    
Debt Securities, Available-for-Sale [Line Items]    
Less than 12 Months, Number of Securities | Number 1 0
Less than 12 Months, Fair Value $ 406 $ 0
Less than 12 Months, Unrealized Losses $ (4) $ 0
More than 12 Months, Number of Securities | Number 36 36
More than 12 Months, Fair Value $ 27,071 $ 26,953
More than 12 Months, Unrealized Losses (3,004) (3,322)
Total, Fair Value 27,477 26,953
Total, Unrealized Losses $ (3,008) $ (3,322)
Corporate debt [Member]    
Debt Securities, Available-for-Sale [Line Items]    
Less than 12 Months, Number of Securities | Number   2
Less than 12 Months, Fair Value   $ 3,705
Less than 12 Months, Unrealized Losses   $ (2)
More than 12 Months, Number of Securities | Number 1 1
More than 12 Months, Fair Value $ 490 $ 489
More than 12 Months, Unrealized Losses (10) (11)
Total, Fair Value 490 4,194
Total, Unrealized Losses $ (10) $ (13)
Corporate subordinated debt [Member]    
Debt Securities, Available-for-Sale [Line Items]    
More than 12 Months, Number of Securities | Number 3 3
More than 12 Months, Fair Value $ 3,399 $ 3,239
More than 12 Months, Unrealized Losses (101) (261)
Total, Fair Value 3,399 3,239
Total, Unrealized Losses $ (101) $ (261)