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Securities, Unrealized Loss Position (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2023
Debt Securities Available-for-Sale, Unrealized Loss Position [Abstract] |  |
Less than 12 months, fair value | $ 53,852 | $ 3,304
More than 12 months, fair value | 237,479 | 312,424
Total, fair value | 291,331 | 315,728
Less than 12 months, unrealized losses | (1,058) | (38)
More than 12 months, unrealized losses | (18,785) | (18,997)
Total, unrealized losses | (19,843) | (19,035)
Debt Securities Available-for-Sale [Abstract] |  |
Securities in nonaccrual status | 0 | 0
Securities purchased with deterioration in credit quality | 0 | 0
Collateral dependent securities | 0 | 0
Allowance for credit losses on available-for-sale securities | 0 |
Federal Agency Mortgage-backed Securities [Member] |  |
Debt Securities Available-for-Sale, Unrealized Loss Position [Abstract] |  |
Less than 12 months, fair value | 0 | 0
More than 12 months, fair value | 63,839 | 66,575
Total, fair value | 63,839 | 66,575
Less than 12 months, unrealized losses | 0 | 0
More than 12 months, unrealized losses | (10,212) | (9,316)
Total, unrealized losses | (10,212) | (9,316)
Federal Agency Collateralized Mortgage Obligations (CMO) [Member] |  |
Debt Securities Available-for-Sale, Unrealized Loss Position [Abstract] |  |
Less than 12 months, fair value | 0 | 0
More than 12 months, fair value | 21,753 | 23,339
Total, fair value | 21,753 | 23,339
Less than 12 months, unrealized losses | 0 | 0
More than 12 months, unrealized losses | (1,455) | (1,381)
Total, unrealized losses | (1,455) | (1,381)
Federal Agency Debt [Member] |  |
Debt Securities Available-for-Sale, Unrealized Loss Position [Abstract] |  |
Less than 12 months, fair value | 0 | 3,018
More than 12 months, fair value | 47,846 | 44,818
Total, fair value | 47,846 | 47,836
Less than 12 months, unrealized losses | 0 | (37)
More than 12 months, unrealized losses | (3,099) | (3,020)
Total, unrealized losses | (3,099) | (3,057)
Municipal Bonds [Member] |  |
Debt Securities Available-for-Sale, Unrealized Loss Position [Abstract] |  |
Less than 12 months, fair value | 0 | 0
More than 12 months, fair value | 4,351 | 4,373
Total, fair value | 4,351 | 4,373
Less than 12 months, unrealized losses | 0 | 0
More than 12 months, unrealized losses | (473) | (460)
Total, unrealized losses | (473) | (460)
US Treasuries [Member] |  |
Debt Securities Available-for-Sale, Unrealized Loss Position [Abstract] |  |
Less than 12 months, fair value | 53,568 | 0
More than 12 months, fair value | 90,875 | 163,880
Total, fair value | 144,443 | 163,880
Less than 12 months, unrealized losses | (1,057) | 0
More than 12 months, unrealized losses | (1,804) | (3,175)
Total, unrealized losses | (2,861) | (3,175)
SBA Pools [Member] |  |
Debt Securities Available-for-Sale, Unrealized Loss Position [Abstract] |  |
Less than 12 months, fair value | 284 | 286
More than 12 months, fair value | 8,815 | 9,439
Total, fair value | 9,099 | 9,725
Less than 12 months, unrealized losses | (1) | (1)
More than 12 months, unrealized losses | (1,742) | (1,645)
Total, unrealized losses | $ (1,743) | $ (1,646)

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