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Note 8 - Loans - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Balance | $ 153,403 | $ 155,109 | $ 154,562 | $ 146,485 | $ 146,485
Provision/(reversal) for expected credit losses | 14,532 | 6,121 | 22,511 | 21,581 |
Charge-offs | (4,478) | (7,483) | (14,928) | (17,873) | (23,486)
Recoveries | 276 | 872 | 1,588 | 4,426 |
Net (charge-offs) | (4,202) | (6,611) | (13,340) | (13,447) |
Balance | 163,733 | 154,619 | 163,733 | 154,619 | 154,562
Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 9,574 | 10,525 | 9,053 | 8,730 | 8,730
Provision/(reversal) for expected credit losses | (32) | 879 | 489 | 2,674 |
Balance | 9,542 | 11,404 | 9,542 | 11,404 | 9,053
Commercial Portfolio Segment [Member] |  |  |  |  |
Balance | 48,588 | 50,579 | 53,791 | 49,435 | 49,435
Provision/(reversal) for expected credit losses | 4,872 | (178) | 8,927 | 6,276 |
Charge-offs | (2,666) | (6,254) | (12,862) | (12,517) | (13,909)
Recoveries | 88 | 611 | 1,026 | 1,564 |
Net (charge-offs) | (2,578) | (5,643) | (11,836) | (10,953) |
Balance | 50,882 | 44,758 | 50,882 | 44,758 | 53,791
Commercial Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 7,493 | 6,984 | 6,888 | 4,840 | 4,840
Provision/(reversal) for expected credit losses | 208 | 1,570 | 813 | 3,714 |
Balance | 7,701 | 8,554 | 7,701 | 8,554 | 6,888
Real Estate Construction Portfolio Segment [Member] |  |  |  |  |
Balance | 8,912 | 12,751 | 8,180 | 10,417 | 10,417
Provision/(reversal) for expected credit losses | (402) | 2,360 | 330 | 4,694 |
Charge-offs | 0 | 0 | 0 | 0 | (4,221)
Recoveries | 0 | 0 | 0 | 0 |
Net (charge-offs) | 0 | 0 | 0 | 0 |
Balance | 8,510 | 15,111 | 8,510 | 15,111 | 8,180
Real Estate Construction Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 2,081 | 3,541 | 2,165 | 3,890 | 3,890
Provision/(reversal) for expected credit losses | (240) | (691) | (324) | (1,040) |
Balance | 1,841 | 2,850 | 1,841 | 2,850 | 2,165
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |
Balance | 78,465 | 73,547 | 74,428 | 68,366 | 68,366
Provision/(reversal) for expected credit losses | 8,444 | 3,307 | 12,731 | 10,027 |
Charge-offs | (1,746) | (1,221) | (1,997) | (5,341) | (5,341)
Recoveries | 180 | 252 | 181 | 2,833 |
Net (charge-offs) | (1,566) | (969) | (1,816) | (2,508) |
Balance | 85,343 | 75,885 | 85,343 | 75,885 | 74,428
Commercial Real Estate Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 0 | 0 | 0 | 0 | 0
Provision/(reversal) for expected credit losses | 0 | 0 | 0 | 0 |
Balance | 0 | 0 | 0 | 0 | 0
Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |  |  |  |
Balance | 17,415 | 18,214 | 18,140 | 18,232 | 18,232
Provision/(reversal) for expected credit losses | 1,554 | 586 | 459 | 548 |
Charge-offs | (59) | 0 | (62) | 0 |
Recoveries | 7 | 9 | 380 | 29 |
Net (charge-offs) | (52) | 9 | 318 | 29 |
Balance | 18,917 | 18,809 | 18,917 | 18,809 | 18,140
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 0 | 0 | 0 | 0 | 0
Provision/(reversal) for expected credit losses | 0 | 0 | 0 | 0 |
Balance | 0 | 0 | 0 | 0 | 0
Installment and Other Loans [Member ] |  |  |  |  |
Balance | 23 | 18 | 23 | 35 | 35
Provision/(reversal) for expected credit losses | 64 | 46 | 64 | 36 |
Charge-offs | (7) | (8) | (7) | (15) | (15)
Recoveries | 1 | 0 | 1 | 0 |
Net (charge-offs) | (6) | (8) | (6) | (15) |
Balance | 81 | 56 | 81 | 56 | 23
Installment and Other Loans [Member ] | Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 0 | 0 | 0 | 0 | 0
Provision/(reversal) for expected credit losses | 0 | 0 | 0 | 0 |
Balance | $ 0 | $ 0 | $ 0 | $ 0 | $ 0

X
- Definition Amount, after recovery, of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph a -Subparagraph (4) -Publisher SEC Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 + Details
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