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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, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Balance | $ 173,531 | $ 153,403 | $ 161,765 | $ 154,562 | $ 154,562
Provision/(reversal) for expected credit losses | 28,762 | 14,532 | 55,246 | 22,511 |
Charge-offs | (16,487) | (4,478) | (31,861) | (14,928) | (31,472)
Recoveries | 841 | 276 | 1,497 | 1,588 |
Net (charge-offs)/recoveries | (15,646) | (4,202) | (30,364) | (13,340) |
Balance | 186,647 | 163,733 | 186,647 | 163,733 | 161,765
Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 9,892 | 9,574 | 9,676 | 9,053 | 9,053
Provision/(reversal) for expected credit losses | (31) | (32) | 185 | 489 |
Balance | 9,861 | 9,542 | 9,861 | 9,542 | 9,676
Commercial Portfolio Segment [Member] |  |  |  |  |
Balance | 40,842 | 48,588 | 57,796 | 53,791 | 53,791
Provision/(reversal) for expected credit losses | 13,855 | 4,872 | 7,897 | 8,927 |
Charge-offs | (16,173) | (2,666) | (27,634) | (12,862) | (26,926)
Recoveries | 547 | 88 | 1,012 | 1,026 |
Net (charge-offs)/recoveries | (15,626) | (2,578) | (26,622) | (11,836) |
Balance | 39,071 | 50,882 | 39,071 | 50,882 | 57,796
Commercial Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 7,590 | 7,493 | 7,780 | 6,888 | 6,888
Provision/(reversal) for expected credit losses | (872) | 208 | (1,062) | 813 |
Balance | 6,718 | 7,701 | 6,718 | 7,701 | 7,780
Real Estate Construction Portfolio Segment [Member] |  |  |  |  |
Balance | 5,434 | 8,912 | 8,185 | 8,180 | 8,180
Provision/(reversal) for expected credit losses | 966 | (402) | (1,786) | 330 |
Charge-offs | 0 | 0 | 0 | 0 | 0
Recoveries | 5 | 0 | 6 | 0 |
Net (charge-offs)/recoveries | 5 | 0 | 6 | 0 |
Balance | 6,405 | 8,510 | 6,405 | 8,510 | 8,185
Real Estate Construction Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 2,248 | 2,081 | 1,896 | 2,165 | 2,165
Provision/(reversal) for expected credit losses | 698 | (240) | 1,050 | (324) |
Balance | 2,946 | 1,841 | 2,946 | 1,841 | 1,896
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |
Balance | 106,773 | 78,465 | 79,597 | 74,428 | 74,428
Provision/(reversal) for expected credit losses | 11,054 | 8,444 | 41,889 | 12,731 |
Charge-offs | (314) | (1,746) | (4,153) | (1,997) | (4,469)
Recoveries | 285 | 180 | 465 | 181 |
Net (charge-offs)/recoveries | (29) | (1,566) | (3,688) | (1,816) |
Balance | 117,798 | 85,343 | 117,798 | 85,343 | 79,597
Commercial Real Estate Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 54 | 0 | 0 | 0 | 0
Provision/(reversal) for expected credit losses | 143 | 0 | 197 | 0 |
Balance | 197 | 0 | 197 | 0 | 0
Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |  |  |  |
Balance | 20,465 | 17,415 | 16,181 | 18,140 | 18,140
Provision/(reversal) for expected credit losses | 2,892 | 1,554 | 7,240 | 459 |
Charge-offs | 0 | (59) | (74) | (62) |
Recoveries | 4 | 7 | 14 | 380 |
Net (charge-offs)/recoveries | 4 | (52) | (60) | 318 |
Balance | 23,361 | 18,917 | 23,361 | 18,917 | 16,181
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 | 17 | 23 | 6 | 23 | 23
Provision/(reversal) for expected credit losses | (5) | 64 | 6 | 64 |
Charge-offs | 0 | (7) | 0 | (7) | (15)
Recoveries | 0 | 1 | 0 | 1 |
Net (charge-offs)/recoveries | 0 | (6) | 0 | (6) |
Balance | 12 | 81 | 12 | 81 | 6
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

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- 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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