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Loans and Allowance for Loan Losses - Allowance for Loan Losses Activity by Portfolio Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Allowances for Loan Losses [Roll Forward] |  |  |
Balance at beginning of period | $ 42,674 | $ 36,515 | $ 36,515
Loans charged-off | (634) | (633) | (4,204)
Recoveries of loans charged-off | 347 | 362 |
Net loans (charged-off) recovered | (287) | (271) |
Provision for (reversal of) loan losses | 1,170 | 88 |
Balance at end of period | 43,557 | 36,332 | 42,674
Construction Real Estate Loans |  |  |
Allowances for Loan Losses [Roll Forward] |  |  |
Balance at beginning of period | 5,287 | 3,164 | 3,164
Loans charged-off | 0 | 0 | (92)
Recoveries of loans charged-off | 0 | 1 |
Net loans (charged-off) recovered | 0 | 1 |
Provision for (reversal of) loan losses | (367) | (13) |
Balance at end of period | 4,920 | 3,152 | 5,287
1-4 Family Residential Real Estate Loans |  |  |
Allowances for Loan Losses [Roll Forward] |  |  |
Balance at beginning of period | 2,840 | 2,173 | 2,173
Loans charged-off | (22) | (49) | (119)
Recoveries of loans charged-off | 11 | 5 |
Net loans (charged-off) recovered | (11) | (44) |
Provision for (reversal of) loan losses | (61) | 185 |
Balance at end of period | 2,768 | 2,314 | 2,840
Commercial Real Estate Loans |  |  |
Allowances for Loan Losses [Roll Forward] |  |  |
Balance at beginning of period | 32,266 | 28,701 | 28,701
Loans charged-off | 0 | 0 | (788)
Recoveries of loans charged-off | 3 | 0 |
Net loans (charged-off) recovered | 3 | 0 |
Provision for (reversal of) loan losses | 624 | 20 |
Balance at end of period | 32,893 | 28,721 | 32,266
Commercial loans |  |  |
Allowances for Loan Losses [Roll Forward] |  |  |
Balance at beginning of period | 2,086 | 2,235 | 2,235
Loans charged-off | (151) | (109) | (1,283)
Recoveries of loans charged-off | 56 | 60 |
Net loans (charged-off) recovered | (95) | (49) |
Provision for (reversal of) loan losses | 783 | (285) |
Balance at end of period | 2,774 | 1,901 | 2,086
Municipal loans |  |  |
Allowances for Loan Losses [Roll Forward] |  |  |
Balance at beginning of period | 19 | 45 | 45
Loans charged-off | 0 | 0 | 0
Recoveries of loans charged-off | 0 | 0 |
Net loans (charged-off) recovered | 0 | 0 |
Provision for (reversal of) loan losses | 0 | (1) |
Balance at end of period | 19 | 44 | 19
Loans to individuals |  |  |
Allowances for Loan Losses [Roll Forward] |  |  |
Balance at beginning of period | 176 | 197 | 197
Loans charged-off | (461) | (475) | (1,922)
Recoveries of loans charged-off | 277 | 296 |
Net loans (charged-off) recovered | (184) | (179) |
Provision for (reversal of) loan losses | 191 | 182 |
Balance at end of period | $ 183 | $ 200 | $ 176

X
- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 + Details
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- Definition Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 + Details
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