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Securities Available-for-Sale - Summary of gross unrealized losses and fair value for those investments with unrealized losses (Detail) $ in Thousands | Jun. 30, 2023 USD ($) Number | Dec. 31, 2022 USD ($) Number
--- | --- | ---
Less than 12 Months, Number of Securities | Number | 30 | 113
Less than 12 Months, Fair Value | $ 20,651 | $ 68,033
Less than 12 Months, Unrealized Losses | $ (899) | $ (7,853)
More than 12 Months, Number of Securities | Number | 129 | 41
More than 12 Months, Fair Value | $ 78,671 | $ 28,219
More than 12 Months, Unrealized Losses | (12,908) | (6,628)
Total, Fair Value | 99,322 | 96,252
Total, Unrealized Losses | $ (13,807) | $ (14,481)
U.S. Government-sponsored enterprises obligations [Member] |  |
Less than 12 Months, Number of Securities | Number |  | 1
Less than 12 Months, Fair Value |  | $ 453
Less than 12 Months, Unrealized Losses |  | $ (43)
More than 12 Months, Number of Securities | Number | 4 | 3
More than 12 Months, Fair Value | $ 1,840 | $ 1,373
More than 12 Months, Unrealized Losses | (338) | (322)
Total, Fair Value | 1,840 | 1,826
Total, Unrealized Losses | $ (338) | $ (365)
U.S. Government agency small business administration pools guaranteed by SBA [Member] |  |
Less than 12 Months, Number of Securities | Number | 4 | 8
Less than 12 Months, Fair Value | $ 2,667 | $ 5,947
Less than 12 Months, Unrealized Losses | $ (213) | $ (602)
More than 12 Months, Number of Securities | Number | 7 | 3
More than 12 Months, Fair Value | $ 5,121 | $ 2,412
More than 12 Months, Unrealized Losses | (964) | (514)
Total, Fair Value | 7,788 | 8,359
Total, Unrealized Losses | $ (1,177) | $ (1,116)
Collateralized mortgage obligations issued by the FHLMC, FNMA and GNMA [Member] |  |
Less than 12 Months, Number of Securities | Number | 5 | 5
Less than 12 Months, Fair Value | $ 3,584 | $ 3,212
Less than 12 Months, Unrealized Losses | $ (240) | $ (209)
More than 12 Months, Number of Securities | Number | 5 | 4
More than 12 Months, Fair Value | $ 2,280 | $ 2,016
More than 12 Months, Unrealized Losses | (490) | (499)
Total, Fair Value | 5,864 | 5,228
Total, Unrealized Losses | $ (730) | $ (708)
Residential mortgage backed securities [Member] |  |
Less than 12 Months, Number of Securities | Number | 3 | 8
Less than 12 Months, Fair Value | $ 2,530 | $ 4,239
Less than 12 Months, Unrealized Losses | $ (100) | $ (503)
More than 12 Months, Number of Securities | Number | 30 | 23
More than 12 Months, Fair Value | $ 19,142 | $ 16,649
More than 12 Months, Unrealized Losses | (4,372) | (4,064)
Total, Fair Value | 21,672 | 20,888
Total, Unrealized Losses | $ (4,472) | $ (4,567)
Municipal bonds [Member] |  |
Less than 12 Months, Number of Securities | Number | 13 | 86
Less than 12 Months, Fair Value | $ 7,370 | $ 49,228
Less than 12 Months, Unrealized Losses | $ (164) | $ (5,900)
More than 12 Months, Number of Securities | Number | 80 | 8
More than 12 Months, Fair Value | $ 47,197 | $ 5,769
More than 12 Months, Unrealized Losses | (5,794) | (1,229)
Total, Fair Value | 54,567 | 54,997
Total, Unrealized Losses | $ (5,958) | $ (7,129)
Corporate debt [Member] |  |
Less than 12 Months, Number of Securities | Number | 1 | 1
Less than 12 Months, Fair Value | $ 485 | $ 497
Less than 12 Months, Unrealized Losses | (15) | (3)
Total, Fair Value | 485 | 497
Total, Unrealized Losses | $ (15) | $ (3)
Corporate subordinated debt [Member] |  |
Less than 12 Months, Number of Securities | Number | 4 | 4
Less than 12 Months, Fair Value | $ 4,015 | $ 4,457
Less than 12 Months, Unrealized Losses | $ (167) | (593)
More than 12 Months, Number of Securities | Number | 3 |
More than 12 Months, Fair Value | $ 3,091 |
More than 12 Months, Unrealized Losses | (950) |
Total, Fair Value | 7,106 | 4,457
Total, Unrealized Losses | $ (1,117) | $ (593)

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