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Investment Securities - Held-to-Maturity and Available-for-Sale, Scheduled Maturities (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024 | Sep. 30, 2024 | Dec. 31, 2023
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Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract] |  |  |  |
Securities, Held-to-Maturity, Amortized Cost | $ 126,040 | $ 134,111 |  |
Securities Held-to-Maturity, Gross Unrealized Gains | 12 | 0 |  |
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss | (14,148) | (19,104) |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest | 0 | 0 |  |
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss | 111,904 | 115,007 |  |
Debt Securities, Available-for-sale [Abstract] |  |  |  |
Investment securities available-for-sale, amortized cost | 399,044 | 402,651 |  |
Securities Available-for-Sale, Gross Unrealized Gain | 1,282 | 140 |  |
Securities Available-for-Sale, Gross Unrealized Losses | (31,915) | (44,591) |  |
Allowance for credit losses | 18 | 839 |  |
Debt securities | 368,393 | 357,361 |  |
Residential mortgage-backed securities |  |  |  |
Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract] |  |  |  |
Securities Held-to-Maturity, Amortized Cost, After 1 Year to 5 Years | 649 | 1,114 |  |
Securities Held-to-Maturity, Gross Unrealized Gains, After 1 Year to 5 Years | 0 | 0 |  |
Securities Held-to-Maturity, Gross Unrealized Losses, After 1 Year to 5 Years | (8) | (24) |  |
Securities Held-to-Maturity, Allowance for Credit Loss, After 1 Year to 5 Years | 0 | 0 |  |
Securities Held-to-Maturity, Fair Value, After 1 Year to 5 Years | 641 | 1,090 |  |
Securities Held-to-Maturity, Amortized Cost, After 5 Years to 10 Years | 11,337 | 10,208 |  |
Securities Held-to-Maturity, Gross Unrealized Gains, After 5 Years to 10 Years | 0 | 0 |  |
Securities Held-to-Maturity, Gross Unrealized Losses, After 5 Years to 10 Years | (304) | (450) |  |
Securities, Held-to-Maturity, Allowance for Credit Loss, After 5 Years To 10 Years | 0 | 0 |  |
Securities Held-to-Maturity, Fair Value, After 5 Years to 10 Years | 11,033 | 9,758 |  |
Securities Held-to-Maturity, Amortized Cost, Over 10 Years | 114,054 | 122,789 |  |
Securities Held-to-Maturity, Gross Unrealized Gain, Over 10 Years | 12 | 0 |  |
Securities Held-to-Maturity, Gross Unrealized Losses, Over 10 Years | (13,836) | (18,630) |  |
Securities Held-to-maturity, Allowance for Credit Loss, Over 10 Years | 0 | 0 |  |
Securities Held-to-Maturity, Fair Value, After 10 years | 100,230 | 104,159 |  |
Securities, Held-to-Maturity, Amortized Cost | 126,040 | 134,111 |  |
Securities Held-to-Maturity, Gross Unrealized Gains | 12 | 0 |  |
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss | (14,148) | (19,104) |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest | 0 | 0 |  |
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss | 111,904 | 115,007 |  |
Debt Securities, Available-for-sale [Abstract] |  |  |  |
Securities Available-for-Sale, Amortized Cost, Within 1 Year | 1 | 20 |  |
Securities Available-for-Sale,Gross Unrealized Gain, Within 1 Year |  | 0 |  |
Securities Available-for-Sale, Gross Unrealized Losses, Within 1 Year | 0 | 0 |  |
Securities Available-for-Sale, Allowance for Credit Loss, Within 1 Year | 0 | 0 |  |
Securities Available-for-Sale, Fair Value, Within 1 Year | 1 | 20 |  |
Securities Available-for-Sale, Amortized Cost, After 1 Year to 5 Years | 166 | 298 |  |
Securities Available-for-Sale,Gross Unrealized Gain, After 1 Year to 5 Years |  | 0 |  |
Securities Available-for-Sale, Gross Unrealized Losses, After 1 Year to 5 Years | (2) | (6) |  |
Securities Available-for-sale, Allowance for Credit Loss, After 1 Year to 5 Years | 0 | 0 |  |
Securities Available-for-Sale, Fair Value, After 1 Year to 5 Years | 164 | 292 |  |
Securities Available-for-Sale, Amortized Cost, After 5 Years to 10 Years | 9,547 | 11,260 |  |
Securities Available-for-Sale,Gross Unrealized Gain, After 5 Years to 10 Years |  | 0 |  |
Securities Available-for-Sale, Gross Unrealized Losses, After 5 Years to 10 Years | (455) | (791) |  |
Securities Available-for-Sale, Allowance for Credit Loss, After 5 Years to 10 Years | 0 | 0 |  |
Securities Available-for-Sale, Fair Value, After 5 Years to 10 Years | 9,092 | 10,469 |  |
Securities Available-for-Sale, Amortized Cost, Over 10 Years | 310,460 | 311,126 |  |
Securities Available-for-Sale,Gross Unrealized Gain, Over 10 Years | 1,167 | 119 |  |
Securities Available-for-Sale, Gross Unrealized Losses, Over 10 Years | (27,680) | (38,645) |  |
Securities Available-for-Sale, Allowance for Credit Loss, After 10 Years | 0 | 0 |  |
Securities Available-for-Sale, Fair Value, Over 10 Years | 283,947 | 272,600 |  |
Investment securities available-for-sale, amortized cost | 320,174 | 322,704 |  |
Securities Available-for-Sale, Gross Unrealized Gain | 1,167 | 119 |  |
Securities Available-for-Sale, Gross Unrealized Losses | (28,137) | (39,442) |  |
Allowance for credit losses | 0 | 0 |  |
Debt securities | 293,204 | 283,381 |  |
State and political subdivisions |  |  |  |
Debt Securities, Available-for-sale [Abstract] |  |  |  |
Securities Available-for-Sale, Amortized Cost, Within 1 Year |  | 1,300 |  |
Securities Available-for-Sale,Gross Unrealized Gain, Within 1 Year |  | 0 |  |
Securities Available-for-Sale, Gross Unrealized Losses, Within 1 Year |  | (5) |  |
Securities Available-for-Sale, Allowance for Credit Loss, Within 1 Year |  | 0 |  |
Securities Available-for-Sale, Fair Value, Within 1 Year |  | 1,295 |  |
Investment securities available-for-sale, amortized cost |  | 1,300 |  |
Securities Available-for-Sale, Gross Unrealized Gain |  | 0 |  |
Securities Available-for-Sale, Gross Unrealized Losses |  | (5) |  |
Allowance for credit losses |  | 0 |  |
Debt securities |  | 1,295 |  |
Collateralized mortgage obligations |  |  |  |
Debt Securities, Available-for-sale [Abstract] |  |  |  |
Securities Available-for-Sale, Amortized Cost, After 1 Year to 5 Years | 89 | 155 |  |
Securities Available-for-Sale,Gross Unrealized Gain, After 1 Year to 5 Years | 0 | 0 |  |
Securities Available-for-Sale, Gross Unrealized Losses, After 1 Year to 5 Years | (1) | (4) |  |
Securities Available-for-sale, Allowance for Credit Loss, After 1 Year to 5 Years | 0 | 0 |  |
Securities Available-for-Sale, Fair Value, After 1 Year to 5 Years | 88 | 151 |  |
Securities Available-for-Sale, Amortized Cost, Over 10 Years | 1,447 | 1,663 |  |
Securities Available-for-Sale,Gross Unrealized Gain, Over 10 Years | 0 | 0 |  |
Securities Available-for-Sale, Gross Unrealized Losses, Over 10 Years | (86) | (129) |  |
Securities Available-for-Sale, Allowance for Credit Loss, After 10 Years | 0 | 0 |  |
Securities Available-for-Sale, Fair Value, Over 10 Years | 1,361 | 1,534 |  |
Investment securities available-for-sale, amortized cost | 1,536 | 1,818 |  |
Securities Available-for-Sale, Gross Unrealized Gain | 0 | 0 |  |
Securities Available-for-Sale, Gross Unrealized Losses | (87) | (133) |  |
Allowance for credit losses | 0 | 0 |  |
Debt securities | 1,449 | 1,685 |  |
Corporate bonds |  |  |  |
Debt Securities, Available-for-sale [Abstract] |  |  |  |
Securities Available-for-Sale, Amortized Cost, Within 1 Year | 7,475 | 5,905 |  |
Securities Available-for-Sale,Gross Unrealized Gain, Within 1 Year | 3 | 5 |  |
Securities Available-for-Sale, Gross Unrealized Losses, Within 1 Year | (70) | (58) |  |
Securities Available-for-Sale, Allowance for Credit Loss, Within 1 Year | (10) | (6) |  |
Securities Available-for-Sale, Fair Value, Within 1 Year | 7,398 | 5,846 |  |
Securities Available-for-Sale, Amortized Cost, After 1 Year to 5 Years | 69,359 | 10,924 |  |
Securities Available-for-Sale,Gross Unrealized Gain, After 1 Year to 5 Years | 112 | 16 |  |
Securities Available-for-Sale, Gross Unrealized Losses, After 1 Year to 5 Years | (3,621) | (303) |  |
Securities Available-for-sale, Allowance for Credit Loss, After 1 Year to 5 Years | (7) | (31) |  |
Securities Available-for-Sale, Fair Value, After 1 Year to 5 Years | 65,843 | 10,606 |  |
Securities Available-for-Sale, Amortized Cost, After 5 Years to 10 Years | 500 | 60,000 |  |
Securities Available-for-Sale,Gross Unrealized Gain, After 5 Years to 10 Years | 0 | 0 |  |
Securities Available-for-Sale, Gross Unrealized Losses, After 5 Years to 10 Years | 0 | (4,650) |  |
Securities Available-for-Sale, Allowance for Credit Loss, After 5 Years to 10 Years | (1) | (802) |  |
Securities Available-for-Sale, Fair Value, After 5 Years to 10 Years | 499 | 54,548 |  |
Investment securities available-for-sale, amortized cost | 77,334 | 76,829 |  |
Securities Available-for-Sale, Gross Unrealized Gain | 115 | 21 |  |
Securities Available-for-Sale, Gross Unrealized Losses | (3,691) | (5,011) |  |
Allowance for credit losses | 18 | 839 | $ 642 | $ 731
Debt securities | $ 73,740 | $ 71,000 |  |

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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 of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 + Details
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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 320 -Name Accounting Standards Codification -Section 50 -Paragraph 3A -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477268/942-320-50-3A + Details
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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 + Details
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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 320 -Name Accounting Standards Codification -Section 50 -Paragraph 3A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477268/942-320-50-3A + Details
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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 + Details
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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 320 -Name Accounting Standards Codification -Section 50 -Paragraph 3A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477268/942-320-50-3A + Details
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