| Financing Receivable, Allowance for Credit Loss [Table Text Block] |
| | | March 31, 2026 | |
| | | Construction and Land Development | | | Secured by 1-4 Family Residential | | | Other Real Estate | | | Commercial and Industrial | | | Consumer and Other Loans | | | Total | |
| Allowance for credit losses: | | | | | | | | | | | | | | | | | | | | | | | | |
| Beginning Balance, December 31, 2025 | | $ | 539 | | | $ | 4,819 | | | $ | 5,952 | | | $ | 3,188 | | | $ | 221 | | | $ | 14,719 | |
| Charge-offs | | | — | | | | (29 | ) | | | — | | | | (580 | ) | | | (100 | ) | | | (709 | ) |
| Recoveries | | | 1 | | | | 7 | | | | 2 | | | | 100 | | | | 57 | | | | 167 | |
| Provision for (recovery of) credit losses on loans | | | 27 | | | | (399 | ) | | | 589 | | | | 304 | | | | — | | | | 521 | |
| Ending Balance, March 31, 2026 | | $ | 567 | | | $ | 4,398 | | | $ | 6,544 | | | $ | 3,012 | | | $ | 177 | | | $ | 14,698 | |
| Ending Balance: | | | | | | | | | | | | | | | | | | | | | | | | |
| Individually evaluated | | | — | | | | — | | | | — | | | | 1,570 | | | | — | | | | 1,570 | |
| Collectively evaluated | | | 567 | | | | 4,398 | | | | 6,544 | | | | 1,442 | | | | 177 | | | | 13,128 | |
| Loans: | | | | | | | | | | | | | | | | | | | | | | | | |
| Ending Balance | | $ | 97,487 | | | $ | 520,821 | | | $ | 712,567 | | | $ | 115,202 | | | $ | 18,329 | | | $ | 1,464,406 | |
| Individually evaluated | | | 44 | | | | 2,111 | | | | — | | | | 2,290 | | | | — | | | | 4,445 | |
| Collectively evaluated | | | 97,443 | | | | 518,710 | | | | 712,567 | | | | 112,912 | | | | 18,329 | | | | 1,459,961 | |
| | | December 31, 2025 | |
| | | Construction and Land Development | | | Secured by 1-4 Family Residential | | | Other Real Estate | | | Commercial and Industrial | | | Consumer and Other Loans | | | Total | |
| Allowance for credit losses: | | | | | | | | | | | | | | | | | | | | | | | | |
| Beginning Balance, December 31, 2024 | | $ | 585 | | | $ | 4,266 | | | $ | 7,462 | | | $ | 3,927 | | | $ | 160 | | | $ | 16,400 | |
| Charge-offs | | | (22 | ) | | | (59 | ) | | | (7 | ) | | | (4,221 | ) | | | (496 | ) | | | (4,805 | ) |
| Recoveries | | | 5 | | | | 31 | | | | 15 | | | | 168 | | | | 147 | | | | 366 | |
| Provision for (recovery of) credit losses on loans | | | (29 | ) | | | 581 | | | | (1,518 | ) | | | 3,314 | | | | 410 | | | | 2,758 | |
| Ending Balance, December 31, 2025 | | $ | 539 | | | $ | 4,819 | | | $ | 5,952 | | | $ | 3,188 | | | $ | 221 | | | $ | 14,719 | |
| Ending Balance: | | | | | | | | | | | | | | | | | | | | | | | | |
| Individually evaluated | | | — | | | | — | | | | — | | | | 1,793 | | | | — | | | | 1,793 | |
| Collectively evaluated | | | 539 | | | | 4,819 | | | | 5,952 | | | | 1,395 | | | | 221 | | | | 12,926 | |
| Loans: | | | | | | | | | | | | | | | | | | | | | | | | |
| Ending Balance | | $ | 88,424 | | | $ | 527,283 | | | $ | 696,978 | | | $ | 117,944 | | | $ | 19,116 | | | $ | 1,449,745 | |
| Individually evaluated | | | 45 | | | | 1,994 | | | | — | | | | 2,615 | | | | — | | | | 4,654 | |
| Collectively evaluated | | | 88,379 | | | | 525,289 | | | | 696,978 | | | | 115,329 | | | | 19,116 | | | | 1,445,091 | |
| | | March 31, 2025 | |
| | | Construction and Land Development | | | Secured by 1-4 Family Residential | | | Other Real Estate | | | Commercial and Industrial | | | Consumer and Other Loans | | | Total | |
| Allowance for credit losses: | | | | | | | | | | | | | | | | | | | | | | | | |
| Beginning Balance, December 31, 2024 | | $ | 585 | | | $ | 4,266 | | | $ | 7,462 | | | $ | 3,927 | | | $ | 160 | | | $ | 16,400 | |
| Charge-offs | | | (22 | ) | | | (3 | ) | | | — | | | | (2,343 | ) | | | (122 | ) | | | (2,490 | ) |
| Recoveries | | | — | | | | 3 | | | | 1 | | | | 33 | | | | 53 | | | | 90 | |
| Provision for (recovery of) credit losses on loans | | | (7 | ) | | | 972 | | | | (1,755 | ) | | | 1,388 | | | | 137 | | | | 735 | |
| Ending Balance, March 31, 2025 | | $ | 556 | | | $ | 5,238 | | | $ | 5,708 | | | $ | 3,005 | | | $ | 228 | | | $ | 14,735 | |
| Ending Balance: | | | | | | | | | | | | | | | | | | | | | | | | |
| Individually evaluated | | | — | | | | — | | | | — | | | | 1,609 | | | | — | | | | 1,609 | |
| Collectively evaluated | | | 556 | | | | 5,238 | | | | 5,708 | | | | 1,396 | | | | 228 | | | | 13,126 | |
| Loans: | | | | | | | | | | | | | | | | | | | | | | | | |
| Ending Balance | | $ | 81,596 | | | $ | 549,502 | | | $ | 665,682 | | | $ | 132,396 | | | $ | 20,774 | | | $ | 1,449,950 | |
| Individually evaluated | | | 75 | | | | 2,071 | | | | — | | | | 2,662 | | | | — | | | | 4,808 | |
| Collectively evaluated | | | 81,521 | | | | 547,431 | | | | 665,682 | | | | 129,734 | | | | 20,774 | | | | 1,445,142 | |
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