Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] |
| | Estimated | | | Quoted Prices in Active Markets for Identical Assets | | | Significant Other Observable Inputs | | | Significant Unobservable Inputs | |
| | Fair Value | | | (Level 1) | | | (Level 2) | | | (Level 3) | |
March 31, 2024 | | | | | | | | | | | | | | | | |
Assets: | | | | | | | | | | | | | | | | |
Obligations of the U.S. Treasury and U.S. government agencies and corporations | | $ | 18,649 | | | $ | — | | | $ | 18,649 | | | $ | — | |
Obligations of state and political subdivisions | | | 15,850 | | | | — | | | | 11,376 | | | | 4,474 | |
Corporate bonds | | | 26,311 | | | | — | | | | 25,842 | | | | 469 | |
Residential mortgage-backed securities | | | 225,861 | | | | — | | | | 225,861 | | | | — | |
Commercial mortgage-backed securities | | | 66,669 | | | | — | | | | 66,669 | | | | — | |
Equity securities at fair value | | | 2,260 | | | | 2,260 | | | | — | | | | — | |
Interest rate swaps - gross assets | | | 18,959 | | | | — | | | | 18,959 | | | | — | |
Total assets | | $ | 374,559 | | | $ | 2,260 | | | $ | 367,356 | | | $ | 4,943 | |
Liabilities: | | | | | | | | | | | | | | | | |
Interest rate swaps - gross liabilities | | $ | 18,959 | | | $ | — | | | $ | 18,959 | | | $ | — | |
| | | | | | | | | | | | | | | | |
December 31, 2023 | | | | | | | | | | | | | | | | |
Assets: | | | | | | | | | | | | | | | | |
Obligations of the U.S. Treasury and U.S. government agencies and corporations | | $ | 20,043 | | | $ | — | | | $ | 20,043 | | | $ | — | |
Obligations of state and political subdivisions | | | 16,703 | | | | — | | | | 11,453 | | | | 5,250 | |
Corporate bonds | | | 26,356 | | | | — | | | | 25,893 | | | | 463 | |
Residential mortgage-backed securities | | | 232,045 | | | | — | | | | 232,045 | | | | — | |
Commercial mortgage-backed securities | | | 66,771 | | | | — | | | | 66,771 | | | | — | |
Equity securities at fair value | | | 1,180 | | | | 1,180 | | | | — | | | | — | |
Interest rate swaps - gross assets | | | 17,325 | | | | — | | | | 17,325 | | | | — | |
Total assets | | $ | 380,423 | | | $ | 1,180 | | | $ | 373,530 | | | $ | 5,713 | |
Liabilities: | | | | | | | | | | | | | | | | |
Interest rate swaps - gross liabilities | | $ | 17,325 | | | $ | — | | | $ | 17,325 | | | $ | — | |
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Fair Value, by Balance Sheet Grouping [Table Text Block] |
| | March 31, 2024 | |
| | Carrying Amount | | | Estimated Fair Value | | | Level 1 | | | Level 2 | | | Level 3 | |
Financial assets: | | | | | | | | | | | | | | | | | | | | |
Cash and cash equivalents | | $ | 41,845 | | | $ | 41,845 | | | $ | 41,845 | | | $ | — | | | $ | — | |
Investment securities - AFS | | | 353,340 | | | | 353,340 | | | | — | | | | 348,397 | | | | 4,943 | |
Investment securities - HTM | | | 17,755 | | | | 18,148 | | | | — | | | | 2,044 | | | | 16,104 | |
Equity securities at fair value | | | 2,260 | | | | 2,260 | | | | 2,260 | | | | — | | | | — | |
Nonmarketable equity securities | | | 12,723 | | | | 12,723 | | | | — | | | | 12,723 | | | | — | |
Loans, net of allowance | | | 2,151,464 | | | | 1,994,035 | | | | — | | | | — | | | | 1,994,035 | |
Interest rate swaps - gross assets | | | 18,959 | | | | 18,959 | | | | — | | | | 18,959 | | | | — | |
| | | | | | | | | | | | | | | | | | | | |
Financial liabilities: | | | | | | | | | | | | | | | | | | | | |
Deposits, noninterest-bearing | | $ | 435,397 | | | $ | 435,397 | | | $ | — | | | $ | 435,397 | | | $ | — | |
Deposits, interest-bearing | | | 1,772,431 | | | | 1,693,579 | | | | — | | | | — | | | | 1,693,579 | |
Borrowings under BTFP and repurchase agreements | | | 236,850 | | | | 236,002 | | | | — | | | | 236,002 | | | | — | |
FHLB long-term advances | | | 23,500 | | | | 23,108 | | | | — | | | | — | | | | 23,108 | |
Junior subordinated debt | | | 8,657 | | | | 8,657 | | | | — | | | | — | | | | 8,657 | |
Subordinated debt | | | 44,000 | | | | 42,156 | | | | — | | | | 42,156 | | | | — | |
Interest rate swaps - gross liabilities | | | 18,959 | | | | 18,959 | | | | — | | | | 18,959 | | | | — | |
| | December 31, 2023 | |
| | Carrying Amount | | | Estimated Fair Value | | | Level 1 | | | Level 2 | | | Level 3 | |
Financial assets: | | | | | | | | | | | | | | | | | | | | |
Cash and cash equivalents | | $ | 32,009 | | | $ | 32,009 | | | $ | 32,009 | | | $ | — | | | $ | — | |
Investment securities - AFS | | | 361,918 | | | | 361,918 | | | | — | | | | 356,205 | | | | 5,713 | |
Investment securities - HTM | | | 20,472 | | | | 20,513 | | | | — | | | | 2,118 | | | | 18,395 | |
Equity securities at fair value | | | 1,180 | | | | 1,180 | | | | 1,180 | | | | — | | | | — | |
Nonmarketable equity securities | | | 13,417 | | | | 13,417 | | | | — | | | | 13,417 | | | | — | |
Loans, net of allowance | | | 2,180,079 | | | | 2,020,924 | | | | — | | | | — | | | | 2,020,924 | |
Interest rate swaps - gross assets | | | 17,325 | | | | 17,325 | | | | — | | | | 17,325 | | | | — | |
| | | | | | | | | | | | | | | | | | | | |
Financial liabilities: | | | | | | | | | | | | | | | | | | | | |
Deposits, noninterest-bearing | | $ | 448,752 | | | $ | 448,752 | | | $ | — | | | $ | 448,752 | | | $ | — | |
Deposits, interest-bearing | | | 1,806,975 | | | | 1,735,562 | | | | — | | | | — | | | | 1,735,562 | |
Borrowings under BTFP and repurchase agreements | | | 221,133 | | | | 221,133 | | | | — | | | | 221,133 | | | | — | |
FHLB long-term advances | | | 23,500 | | | | 22,945 | | | | — | | | | — | | | | 22,945 | |
Junior subordinated debt | | | 8,630 | | | | 8,630 | | | | — | | | | — | | | | 8,630 | |
Subordinated debt | | | 45,000 | | | | 44,544 | | | | — | | | | 44,544 | | | | — | |
Interest rate swaps - gross liabilities | | | 17,325 | | | | 17,325 | | | | — | | | | 17,325 | | | | — | |
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