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Investment Securities - Schedule of Available-for-Sale Securities Amortized Cost and Fair Value (Details) - USD ($) | Dec. 31, 2023 | Dec. 31, 2022
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Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | $ 613,479,000 | $ 892,605,000
Available-for-sale, gross unrealized gains | 3,000 | 34,000
Available-for-sale, gross unrealized losses | (61,454,000) | (90,543,000)
Allowance for Credit Losses | 0 | 0
Available-for-sale securities | $ 552,028,000 | $ 802,096,000
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Interest receivable and other assets | Interest receivable and other assets
Accrued interest | $ 2,300,000 | $ 3,200,000
MBS pass-through securities issued by FHLMC, FNMA and GNMA |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 81,937,000 | 109,736,000
Available-for-sale, gross unrealized gains | 2,000 | 3,000
Available-for-sale, gross unrealized losses | (9,516,000) | (12,133,000)
Allowance for Credit Losses | 0 | 0
Available-for-sale securities | 72,423,000 | 97,606,000
CMOs issued by FHLMC |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 266,407,000 | 347,437,000
Available-for-sale, gross unrealized gains | 0 | 0
Available-for-sale, gross unrealized losses | (24,758,000) | (33,682,000)
Allowance for Credit Losses | 0 | 0
Available-for-sale securities | 241,649,000 | 313,755,000
CMOs issued by FNMA |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 23,987,000 | 36,172,000
Available-for-sale, gross unrealized gains | 0 | 0
Available-for-sale, gross unrealized losses | (2,715,000) | (3,852,000)
Allowance for Credit Losses | 0 | 0
Available-for-sale securities | 21,272,000 | 32,320,000
CMOs issued by GNMA |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 20,006,000 | 35,120,000
Available-for-sale, gross unrealized gains | 0 | 0
Available-for-sale, gross unrealized losses | (2,878,000) | (3,296,000)
Allowance for Credit Losses | 0 | 0
Available-for-sale securities | 17,128,000 | 31,824,000
SBA-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 21,126,000 | 47,724,000
Available-for-sale, gross unrealized gains | 0 | 2,000
Available-for-sale, gross unrealized losses | (1,655,000) | (3,371,000)
Allowance for Credit Losses | 0 | 0
Available-for-sale securities | 19,471,000 | 44,355,000
Debentures of government sponsored agencies |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 73,899,000 | 149,114,000
Available-for-sale, gross unrealized gains | 0 | 0
Available-for-sale, gross unrealized losses | (7,037,000) | (14,008,000)
Allowance for Credit Losses | 0 | 0
Available-for-sale securities | 66,862,000 | 135,106,000
U.S. Treasury securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 11,923,000 | 11,904,000
Available-for-sale, gross unrealized gains | 0 | 0
Available-for-sale, gross unrealized losses | (1,300,000) | (1,635,000)
Allowance for Credit Losses | 0 | 0
Available-for-sale securities | 10,623,000 | 10,269,000
Obligations of state and political subdivisions |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 102,202,000 | 116,855,000
Available-for-sale, gross unrealized gains | 1,000 | 29,000
Available-for-sale, gross unrealized losses | (10,321,000) | (14,761,000)
Allowance for Credit Losses | 0 | 0
Available-for-sale securities | 91,882,000 | 102,123,000
Corporate bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 11,992,000 | 36,990,000
Available-for-sale, gross unrealized gains | 0 | 0
Available-for-sale, gross unrealized losses | (1,274,000) | (3,714,000)
Allowance for Credit Losses | 0 | 0
Available-for-sale securities | 10,718,000 | 33,276,000
Asset-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 0 | 1,553,000
Available-for-sale, gross unrealized gains | 0 | 0
Available-for-sale, gross unrealized losses | 0 | (91,000)
Allowance for Credit Losses | 0 | 0
Available-for-sale securities | $ 0 | $ 1,462,000

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