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Investment Securities - Amortized Cost and Fair Value - Available-for-sale Securities (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Securities Available-for-Sale |  |
Amortized cost, available for sale | $ 136,276 | $ 143,841
Gross unrealized gains | 24 |
Gross unrealized (losses) | (11,831) | (13,584)
Available-for-sale, fair value | 124,469 | 130,257
Past Due |  |
Securities Available-for-Sale |  |
Available-for-sale, fair value | 0 | 0
U.S. Treasuries |  |
Securities Available-for-Sale |  |
Amortized cost, available for sale | 23,195 | 27,920
Gross unrealized (losses) | (557) | (783)
Available-for-sale, fair value | 22,638 | 27,137
U.S. government and federal agencies |  |
Securities Available-for-Sale |  |
Amortized cost, available for sale | 8,976 | 10,966
Gross unrealized (losses) | (287) | (385)
Available-for-sale, fair value | 8,689 | 10,581
Corporate bonds |  |
Securities Available-for-Sale |  |
Amortized cost, available for sale | 3,000 | 3,000
Gross unrealized (losses) | (212) | (261)
Available-for-sale, fair value | 2,788 | 2,739
U.S. agency collateralized mortgage obligations |  |
Securities Available-for-Sale |  |
Amortized cost, available for sale | 36,370 | 36,032
Gross unrealized gains | 3 |
Gross unrealized (losses) | (5,952) | (6,421)
Available-for-sale, fair value | 30,421 | 29,611
Tax-exempt municipal |  |
Securities Available-for-Sale |  |
Amortized cost, available for sale | 1,379 | 1,379
Gross unrealized (losses) | (222) | (208)
Available-for-sale, fair value | 1,157 | 1,171
Taxable municipal |  |
Securities Available-for-Sale |  |
Amortized cost, available for sale | 270 | 270
Gross unrealized (losses) | (5) | (7)
Available-for-sale, fair value | 265 | 263
U.S. agency mortgage-backed |  |
Securities Available-for-Sale |  |
Amortized cost, available for sale | 63,086 | 64,274
Gross unrealized gains | 21 |
Gross unrealized (losses) | (4,596) | (5,519)
Available-for-sale, fair value | $ 58,511 | $ 58,755

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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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- Definition Amount, before tax, of unrealized loss 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 (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 + Details
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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of 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 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479130/326-30-45-1 + Details
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