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Note 9 - Loans - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Balance | $ 155,109 | $ 148,772 | $ 146,485 | $ 136,157 | $ 136,157
(Reversal)/provision for expected credit losses | 6,121 | 602 | 21,581 | 12,709 |
Charge-offs | (7,483) | (2,228) | (17,873) | (2,500) | (5,490)
Recoveries | 872 | 1,671 | 4,426 | 2,451 |
Net (charge-offs)/recoveries | (6,611) | (557) | (13,447) | (49) |
Balance | 154,619 | 148,817 | 154,619 | 148,817 | 146,485
Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 10,525 | 6,136 | 8,730 | 7,100 | 7,100
(Reversal)/provision for expected credit losses | 879 | 1,398 | 2,674 | 434 |
Balance | 11,404 | 7,534 | 11,404 | 7,534 | 8,730
Commercial Portfolio Segment [Member] |  |  |  |  |
Balance | 50,579 | 49,069 | 49,435 | 43,394 | 43,394
(Reversal)/provision for expected credit losses | (178) | 1,845 | 6,276 | 7,258 |
Charge-offs | (6,254) | (2,091) | (12,517) | (2,362) | (3,222)
Recoveries | 611 | 1,576 | 1,564 | 2,109 |
Net (charge-offs)/recoveries | (5,643) | (515) | (10,953) | (253) |
Balance | 44,758 | 50,399 | 44,758 | 50,399 | 49,435
Commercial Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 6,984 | 2,804 | 4,840 | 3,725 | 3,725
(Reversal)/provision for expected credit losses | 1,570 | 1,576 | 3,714 | 655 |
Balance | 8,554 | 4,380 | 8,554 | 4,380 | 4,840
Real Estate Construction Portfolio Segment [Member] |  |  |  |  |
Balance | 12,751 | 7,276 | 10,417 | 6,302 | 6,302
(Reversal)/provision for expected credit losses | 2,360 | (1,065) | 4,694 | (97) |
Charge-offs | 0 | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 6 |
Net (charge-offs)/recoveries | 0 | 0 | 0 | 6 |
Balance | 15,111 | 6,211 | 15,111 | 6,211 | 10,417
Real Estate Construction Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 3,541 | 3,306 | 3,890 | 3,375 | 3,375
(Reversal)/provision for expected credit losses | (691) | (152) | (1,040) | (221) |
Balance | 2,850 | 3,154 | 2,850 | 3,154 | 3,890
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |
Balance | 73,547 | 68,600 | 68,366 | 61,081 | 61,081
(Reversal)/provision for expected credit losses | 3,307 | 1,362 | 10,027 | 8,699 |
Charge-offs | (1,221) | 0 | (5,341) | 0 | (2,091)
Recoveries | 252 | 88 | 2,833 | 270 |
Net (charge-offs)/recoveries | (969) | 88 | (2,508) | 270 |
Balance | 75,885 | 70,050 | 75,885 | 70,050 | 68,366
Commercial Real Estate Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 0 | 26 | 0 | 0 | 0
(Reversal)/provision for expected credit losses | 0 | (26) | 0 | 0 |
Balance | 0 | 0 | 0 | 0 | 0
Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |  |  |  |
Balance | 18,214 | 23,692 | 18,232 | 25,379 | 25,379
(Reversal)/provision for expected credit losses | 586 | (1,612) | 548 | (3,357) |
Charge-offs | 0 | (58) | 0 | (58) |
Recoveries | 9 | 7 | 29 | 65 |
Net (charge-offs)/recoveries | 9 | (51) | 29 | 7 |
Balance | 18,809 | 22,029 | 18,809 | 22,029 | 18,232
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 0 | 0 | 0 | 0 | 0
(Reversal)/provision for expected credit losses | 0 | 0 | 0 | 0 |
Balance | 0 | 0 | 0 | 0 | 0
Installment and Other Loans [Member ] |  |  |  |  |
Balance | 18 | 135 | 35 | 1 | 1
(Reversal)/provision for expected credit losses | 46 | 72 | 36 | 206 |
Charge-offs | (8) | (79) | (15) | (80) | (177)
Recoveries | 0 | 0 | 0 | 1 |
Net (charge-offs)/recoveries | (8) | (79) | (15) | (79) |
Balance | 56 | 128 | 56 | 128 | 35
Installment and Other Loans [Member ] | Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 0 | 0 | 0 | 0 | 0
(Reversal)/provision for expected credit losses | 0 | 0 | 0 | 0 |
Balance | $ 0 | $ 0 | $ 0 | $ 0 | $ 0

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