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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
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Allowances for Loan Losses [Roll Forward] |  |
Balance at beginning of period | $ 36,515 | $ 35,273
Loans charged-off | (633) | (555)
Recoveries of loans charged-off | 362 | 540
Net loans (charged-off) recovered | (271) | (15)
Provision for (reversal of) loan losses | 88 | 266
Balance at end of period | 36,332 | 35,524
Construction Real Estate Loans |  |
Allowances for Loan Losses [Roll Forward] |  |
Balance at beginning of period | 3,164 | 3,787
Loans charged-off | 0 | 0
Recoveries of loans charged-off | 1 | 0
Net loans (charged-off) recovered | 1 | 0
Provision for (reversal of) loan losses | (13) | (183)
Balance at end of period | 3,152 | 3,604
1-4 Family Residential Real Estate Loans |  |
Allowances for Loan Losses [Roll Forward] |  |
Balance at beginning of period | 2,173 | 1,866
Loans charged-off | (49) | 0
Recoveries of loans charged-off | 5 | 39
Net loans (charged-off) recovered | (44) | 39
Provision for (reversal of) loan losses | 185 | 77
Balance at end of period | 2,314 | 1,982
Commercial Real Estate Loans |  |
Allowances for Loan Losses [Roll Forward] |  |
Balance at beginning of period | 28,701 | 26,980
Loans charged-off | 0 | 0
Recoveries of loans charged-off | 0 | 47
Net loans (charged-off) recovered | 0 | 47
Provision for (reversal of) loan losses | 20 | 198
Balance at end of period | 28,721 | 27,225
Commercial loans |  |
Allowances for Loan Losses [Roll Forward] |  |
Balance at beginning of period | 2,235 | 2,397
Loans charged-off | (109) | (131)
Recoveries of loans charged-off | 60 | 216
Net loans (charged-off) recovered | (49) | 85
Provision for (reversal of) loan losses | (285) | (28)
Balance at end of period | 1,901 | 2,454
Municipal loans |  |
Allowances for Loan Losses [Roll Forward] |  |
Balance at beginning of period | 45 | 47
Loans charged-off | 0 | 0
Recoveries of loans charged-off | 0 | 0
Net loans (charged-off) recovered | 0 | 0
Provision for (reversal of) loan losses | (1) | 1
Balance at end of period | 44 | 48
Loans to individuals |  |
Allowances for Loan Losses [Roll Forward] |  |
Balance at beginning of period | 197 | 196
Loans charged-off | (475) | (424)
Recoveries of loans charged-off | 296 | 238
Net loans (charged-off) recovered | (179) | (186)
Provision for (reversal of) loan losses | 182 | 201
Balance at end of period | $ 200 | $ 211

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 -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
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- Definition Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
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