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Investment Securities - Schedule of Available-for-Sale Securities Amortized Cost and Fair Value (Details) - USD ($) | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | $ 285,835,000 | $ 613,479,000
Available-for-sale, gross unrealized gains | 16,000 | 3,000
Available-for-sale, gross unrealized losses | (32,934,000) | (61,454,000)
Allowance for Credit Losses | 0 | 0
Fair Value | $ 252,917,000 | $ 552,028,000
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 | $ 1,300,000 | $ 2,300,000
MBS pass-through securities issued by FHLMC, FNMA and GNMA |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 46,729,000 | 81,937,000
Available-for-sale, gross unrealized gains | 10,000 | 2,000
Available-for-sale, gross unrealized losses | (5,584,000) | (9,516,000)
Allowance for Credit Losses | 0 | 0
Fair Value | 41,155,000 | 72,423,000
CMOs issued by FHLMC |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 96,956,000 | 266,407,000
Available-for-sale, gross unrealized gains | 6,000 | 0
Available-for-sale, gross unrealized losses | (8,551,000) | (24,758,000)
Allowance for Credit Losses | 0 | 0
Fair Value | 88,411,000 | 241,649,000
CMOs issued by FNMA |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 4,520,000 | 23,987,000
Available-for-sale, gross unrealized gains | 0 | 0
Available-for-sale, gross unrealized losses | (654,000) | (2,715,000)
Allowance for Credit Losses | 0 | 0
Fair Value | 3,866,000 | 21,272,000
CMOs issued by GNMA |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 14,300,000 | 20,006,000
Available-for-sale, gross unrealized gains | 0 | 0
Available-for-sale, gross unrealized losses | (2,756,000) | (2,878,000)
Allowance for Credit Losses | 0 | 0
Fair Value | 11,544,000 | 17,128,000
SBA-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 365,000 | 21,126,000
Available-for-sale, gross unrealized gains | 0 | 0
Available-for-sale, gross unrealized losses | (31,000) | (1,655,000)
Allowance for Credit Losses | 0 | 0
Fair Value | 334,000 | 19,471,000
Debentures of government- sponsored agencies |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 8,971,000 | 73,899,000
Available-for-sale, gross unrealized gains | 0 | 0
Available-for-sale, gross unrealized losses | (1,837,000) | (7,037,000)
Allowance for Credit Losses | 0 | 0
Fair Value | 7,134,000 | 66,862,000
U.S. Treasury securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 11,932,000 | 11,923,000
Available-for-sale, gross unrealized gains | 0 | 0
Available-for-sale, gross unrealized losses | (1,362,000) | (1,300,000)
Allowance for Credit Losses | 0 |
Fair Value | 10,570,000 | 10,623,000
Obligations of state and political subdivisions |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 96,062,000 | 102,202,000
Available-for-sale, gross unrealized gains | 0 | 1,000
Available-for-sale, gross unrealized losses | (11,581,000) | (10,321,000)
Allowance for Credit Losses | 0 | 0
Fair Value | 84,481,000 | 91,882,000
Corporate bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, amortized cost | 6,000,000 | 11,992,000
Available-for-sale, gross unrealized gains | 0 | 0
Available-for-sale, gross unrealized losses | (578,000) | (1,274,000)
Allowance for Credit Losses | 0 | 0
Fair Value | $ 5,422,000 | $ 10,718,000

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 + Details
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