| Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] |
| | | March 31, 2025 | |
| (dollars in thousands) | | Level 1 | | | Level 2 | | | Level 3 | | | Total | |
| Trading | | $ | 3,047 | | | $ | — | | | $ | — | | | $ | 3,047 | |
| Available-for-sale | | | | | | | | | | | | | | | | |
| U.S. treasury and government agencies | | | — | | | 10,676 | | | | — | | | 10,676 | |
| Mortgage backed securities | | | | | | | | | | | | | | | | |
| Residential agency | | | — | | | 501,700 | | | | — | | | 501,700 | |
| Commercial | | | — | | | 1,274 | | | | — | | | 1,274 | |
| Asset backed securities | | | — | | | 18 | | | | — | | | 18 | |
| Corporate bonds | | | — | | | 54,060 | | | | — | | | 54,060 | |
| Total available-for-sale investment securities | | $ | — | | | $ | 567,728 | | | $ | — | | | $ | 567,728 | |
| Servicing rights | | $ | — | | | $ | — | | | $ | 7,351 | | | $ | 7,351 | |
| Other assets | | | | | | | | | | | | | | | | |
| Derivatives | | $ | — | | | $ | 9,985 | | | $ | — | | | $ | 9,985 | |
| Other liabilities | | | | | | | | | | | | | | | | |
| Derivatives | | $ | — | | | $ | 9,765 | | | $ | — | | | $ | 9,765 | |
| | | December 31, 2024 | |
| (dollars in thousands) | | Level 1 | | | Level 2 | | | Level 3 | | | Total | |
| Trading | | $ | 3,309 | | | $ | — | | | $ | — | | | $ | 3,309 | |
| Available-for-sale | | | | | | | | | | | | | | | | |
| U.S. treasury and government agencies | | | — | | | | 30,707 | | | | — | | | | 30,707 | |
| Mortgage backed securities | | | | | | | | | | | | | | | | |
| Residential agency | | | — | | | | 503,706 | | | | — | | | | 503,706 | |
| Commercial | | | — | | | | 1,251 | | | | — | | | | 1,251 | |
| Asset backed securities | | | — | | | | 19 | | | | — | | | | 19 | |
| Corporate bonds | | | — | | | | 52,370 | | | | — | | | | 52,370 | |
| Total available-for-sale investment securities | | $ | — | | | $ | 588,053 | | | $ | — | | | $ | 588,053 | |
| Servicing rights | | $ | — | | | $ | — | | | $ | 7,918 | | | $ | 7,918 | |
| Other assets | | | | | | | | | | | | | | | | |
| Derivatives | | $ | — | | | $ | 9,105 | | | $ | — | | | $ | 9,105 | |
| Other liabilities | | | | | | | | | | | | | | | | |
| Derivatives | | $ | — | | | $ | 8,600 | | | $ | — | | | $ | 8,600 | |
|
| Fair Value, by Balance Sheet Grouping [Table Text Block] |
| | | March 31, 2025 | |
| | | Carrying | | | Estimated Fair Value | |
| (dollars in thousands) | | Amount | | | Level 1 | | | Level 2 | | | Level 3 | | | Total | |
| Financial Assets | | | | | | | | | | | | | | | | | | | | |
| Cash and cash equivalents | | $ | 82,979 | | | $ | 82,979 | | | $ | — | | | $ | — | | | $ | 82,979 | |
| Investment securities held-to-maturity | | | 268,631 | | | | — | | | | 234,575 | | | | — | | | | 234,575 | |
| Loans, net | | | 4,023,554 | | | | — | | | | — | | | | 3,987,760 | | | | 3,987,760 | |
| Accrued interest receivable | | | 20,505 | | | | 20,505 | | | | — | | | | — | | | | 20,505 | |
| Bank-owned life insurance | | | 36,392 | | | | — | | | | 36,392 | | | | — | | | | 36,392 | |
| Servicing rights | | | 7,351 | | | | — | | | | — | | | | 7,351 | | | | 7,351 | |
| Financial Liabilities | | | | | | | | | | | | | | | | | | | | |
| Noninterest-bearing deposits | | $ | 889,270 | | | $ | — | | | $ | 889,270 | | | $ | — | | | $ | 889,270 | |
| Interest-bearing deposits | | | 2,932,499 | | | | — | | | | 2,932,499 | | | | — | | | | 2,932,499 | |
| Time deposits | | | 663,522 | | | | — | | | | 663,919 | | | | — | | | | 663,919 | |
| Short-term borrowings | | | 200,000 | | | | 200,000 | | | | — | | | | — | | | | 200,000 | |
| Long-term debt | | | 59,098 | | | | — | | | | 59,379 | | | | — | | | | 59,379 | |
| Accrued interest payable | | | 9,141 | | | | 9,141 | | | | — | | | | — | | | | 9,141 | |
| | | December 31, 2024 | |
| | | Carrying | | | Estimated Fair Value | |
| (dollars in thousands) | | Amount | | | Level 1 | | | Level 2 | | | Level 3 | | | Total | |
| Financial Assets | | | | | | | | | | | | | | | | | | | | |
| Cash and cash equivalents | | $ | 61,239 | | | $ | 61,239 | | | $ | — | | | $ | — | | | $ | 61,239 | |
| Investment securities held-to-maturity | | | 275,585 | | | | — | | | | 236,986 | | | | — | | | | 236,986 | |
| Loans, net | | | 3,932,605 | | | | — | | | | — | | | | 3,872,186 | | | | 3,872,186 | |
| Accrued interest receivable | | | 20,075 | | | | 20,075 | | | | — | | | | — | | | | 20,075 | |
| Bank-owned life insurance | | | 36,033 | | | | — | | | | 36,033 | | | | — | | | | 36,033 | |
| Servicing rights | | | 7,918 | | | | — | | | | — | | | | 7,918 | | | | 7,918 | |
| Financial Liabilities | | | | | | | | | | | | | | | | | | | | |
| Noninterest-bearing deposits | | $ | 903,466 | | | $ | — | | | $ | 903,466 | | | $ | — | | | $ | 903,466 | |
| Interest-bearing deposits | | | 2,767,979 | | | | — | | | | 2,767,979 | | | | — | | | | 2,767,979 | |
| Time deposits | | | 706,965 | | | | — | | | | 696,976 | | | | — | | | | 696,976 | |
| Short-term borrowings | | | 238,960 | | | | 238,960 | | | | — | | | | — | | | | 238,960 | |
| Long-term debt | | | 59,069 | | | | — | | | | 59,078 | | | | — | | | | 59,078 | |
| Accrued interest payable | | | 11,343 | | | | 11,343 | | | | — | | | | — | | | | 11,343 | |
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