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Note 5 - Loans - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Balance | $ 146,485 | $ 136,157
Provision/(reversal) for expected credit losses | 25,655 | 12,913
Charge-offs | (23,486) | (5,490)
Recoveries | 5,908 | 2,905
Net (Charge-offs)/Recoveries | (17,578) | (2,585)
Balance | 154,562 | 146,485
Commitments to Extend Credit [Member] |  |
Balance | 8,730 | 7,100
Provision/(reversal) for expected credit losses | 323 | 1,630
Balance | 9,053 | 8,730
Commercial Portfolio Segment [Member] |  |
Balance | 49,435 | 43,394
Provision/(reversal) for expected credit losses | 15,275 | 6,798
Charge-offs | (13,909) | (3,222)
Recoveries | 2,990 | 2,465
Net (Charge-offs)/Recoveries | (10,919) | (757)
Balance | 53,791 | 49,435
Commercial Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |
Balance | 4,840 | 3,725
Provision/(reversal) for expected credit losses | 2,048 | 1,115
Balance | 6,888 | 4,840
Real Estate Construction Portfolio Segment [Member] |  |
Balance | 10,417 | 6,302
Provision/(reversal) for expected credit losses | 1,984 | 4,109
Charge-offs | (4,221) | 0
Recoveries | 0 | 6
Net (Charge-offs)/Recoveries | (4,221) | 6
Balance | 8,180 | 10,417
Real Estate Construction Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |
Balance | 3,890 | 3,375
Provision/(reversal) for expected credit losses | (1,725) | 515
Balance | 2,165 | 3,890
Commercial Real Estate Portfolio Segment [Member] |  |
Balance | 68,366 | 61,081
Provision/(reversal) for expected credit losses | 8,570 | 9,079
Charge-offs | (5,341) | (2,152)
Recoveries | 2,833 | 358
Net (Charge-offs)/Recoveries | (2,508) | (1,794)
Balance | 74,428 | 68,366
Commercial Real Estate Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |
Balance | 0 | 0
Provision/(reversal) for expected credit losses | 0 | 0
Balance | 0 | 0
Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |
Balance | 18,232 | 25,379
Provision/(reversal) for expected credit losses | (177) | (7,221)
Charge-offs | 0 | 0
Recoveries | 85 | 74
Net (Charge-offs)/Recoveries | 85 | 74
Balance | 18,140 | 18,232
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |
Balance | 0 | 0
Provision/(reversal) for expected credit losses | 0 | 0
Balance | 0 | 0
Installment and Other Loans [Member ] |  |
Balance | 35 | 1
Provision/(reversal) for expected credit losses | 3 | 148
Charge-offs | (15) | (116)
Recoveries | 0 | 2
Net (Charge-offs)/Recoveries | (15) | (114)
Balance | 23 | 35
Installment and Other Loans [Member ] | Commitments to Extend Credit [Member] |  |
Balance | 0 | 0
Provision/(reversal) for expected credit losses | 0 | 0
Balance | $ 0 | $ 0

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- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (1) -Publisher SEC Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) -Publisher SEC Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (c) -Publisher SEC Reference 5: http://www.xbrl.org/2003/role/disclosureRef -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 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c)(1) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 + Details
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