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Note 3 - Loans and Allowance for Credit Losses on Loans - Allowance for Loan Losses by Portfolio Segment and Based on Impairment Evaluation Method (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Beginning balance | $ 77,710 | $ 66,362 | $ 73,531 | $ 53,898 |
Provision for credit losses | 2,300 | 4,103 | 6,700 | 6,082 |
Charge-offs | (2,115) | (926) | (2,805) | (1,705) |
Recoveries | 180 | 544 | 649 | 1,858 |
Ending balance | 78,075 | 70,083 | 78,075 | 70,083 |
Initial Allowance on PCD Loans |  | 0 |  | 9,950 |
Real Estate [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 24,154 |  | 24,154 |  | $ 22,459
Accounts Receivable and Equipment [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 5,006 |  | 5,006 |  | 5,028
Other Collateral [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 275 |  | 275 |  | 219
Collateral Pledged [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 29,435 |  | 29,435 |  | 27,706
Allowance for loans, individually evaluated for impairment | 4,225 |  | 4,225 |  | 5,822
Home Equity Line of Credit [Member] |  |  |  |  |
Beginning balance | 1,609 | 1,521 | 1,613 | 1,044 |
Provision for credit losses | (7) | 105 | 1 | 580 |
Charge-offs | 0 | 0 | (12) | 0 |
Recoveries | 0 | 0 | 0 | 0 |
Ending balance | 1,602 | 1,626 | 1,602 | 1,626 |
Initial Allowance on PCD Loans |  | 0 |  | 2 |
Home Equity Line of Credit [Member] | Real Estate [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 304 |  | 304 |  | 205
Home Equity Line of Credit [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Home Equity Line of Credit [Member] | Other Collateral [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Home Equity Line of Credit [Member] | Collateral Pledged [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 304 |  | 304 |  | 205
Allowance for loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |
Beginning balance | 33,330 | 30,565 | 33,468 | 25,555 |
Provision for credit losses | 668 | 275 | 494 | (359) |
Charge-offs | 0 | (37) | 0 | (78) |
Recoveries | 23 | 153 | 59 | 209 |
Ending balance | 34,021 | 30,956 | 34,021 | 30,956 |
Initial Allowance on PCD Loans |  | 0 |  | 5,629 |
Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 16,910 |  | 16,910 |  | 19,179
Commercial Real Estate Portfolio Segment [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Commercial Real Estate Portfolio Segment [Member] | Other Collateral [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Commercial Real Estate Portfolio Segment [Member] | Collateral Pledged [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 16,910 |  | 16,910 |  | 19,179
Allowance for loans, individually evaluated for impairment | 2,732 |  | 2,732 |  | 3,498
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] |  |  |  |  |
Beginning balance | 21,773 | 20,723 | 22,641 | 15,960 |
Provision for credit losses | (420) | 502 | (1,324) | 1,744 |
Charge-offs | 0 | (37) | 0 | (37) |
Recoveries | 17 | 0 | 53 | 13 |
Ending balance | 21,370 | 21,188 | 21,370 | 21,188 |
Initial Allowance on PCD Loans |  | 0 |  | 3,508 |
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Real Estate [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 14,004 |  | 14,004 |  | 14,764
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Other Collateral [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Collateral Pledged [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 14,004 |  | 14,004 |  | 14,764
Allowance for loans, individually evaluated for impairment | 1,892 |  | 1,892 |  | 2,652
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] |  |  |  |  |
Beginning balance | 11,557 | 9,842 | 10,827 | 9,595 |
Provision for credit losses | 1,088 | (227) | 1,818 | (2,103) |
Charge-offs | 0 | 0 | 0 | (41) |
Recoveries | 6 | 153 | 6 | 196 |
Ending balance | 12,651 | 9,768 | 12,651 | 9,768 |
Initial Allowance on PCD Loans |  | 0 |  | 2,121 |
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Real Estate [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 2,906 |  | 2,906 |  | 4,415
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Other Collateral [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Collateral Pledged [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 2,906 |  | 2,906 |  | 4,415
Allowance for loans, individually evaluated for impairment | 840 |  | 840 |  | 846
Commercial and Industrial Portfolio Segment [Member] | Real Estate [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 3,122 |  | 3,122 |  | 461
Commercial and Industrial Portfolio Segment [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 5,006 |  | 5,006 |  | 5,028
Commercial and Industrial Portfolio Segment [Member] | Other Collateral [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Commercial and Industrial Portfolio Segment [Member] | Collateral Pledged [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 8,128 |  | 8,128 |  | 5,489
Allowance for loans, individually evaluated for impairment | 1,151 |  | 1,151 |  | 1,966
Commercial and Industrial Portfolio Segment [Member] | Term [Member] |  |  |  |  |
Beginning balance | 14,792 | 12,342 | 12,991 | 8,577 |
Provision for credit losses | 1,026 | 2,055 | 2,955 | 3,796 |
Charge-offs | (1,878) | (466) | (2,006) | (594) |
Recoveries | 16 | 232 | 16 | 1,026 |
Ending balance | 13,956 | 14,163 | 13,956 | 14,163 |
Initial Allowance on PCD Loans |  | 0 |  | 1,358 |
Commercial and Industrial Portfolio Segment [Member] | Term [Member] | Real Estate [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 432 |  | 432 |  | 39
Commercial and Industrial Portfolio Segment [Member] | Term [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 4,847 |  | 4,847 |  | 2,207
Commercial and Industrial Portfolio Segment [Member] | Term [Member] | Other Collateral [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Commercial and Industrial Portfolio Segment [Member] | Term [Member] | Collateral Pledged [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 5,279 |  | 5,279 |  | 2,246
Allowance for loans, individually evaluated for impairment | 412 |  | 412 |  | 1,205
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member] |  |  |  |  |
Beginning balance | 6,503 | 5,000 | 6,389 | 4,802 |
Provision for credit losses | (158) | 203 | (193) | (1,437) |
Charge-offs | 0 | (99) | 0 | (135) |
Recoveries | 1 | 0 | 150 | 0 |
Ending balance | 6,346 | 5,104 | 6,346 | 5,104 |
Initial Allowance on PCD Loans |  | 0 |  | 1,874 |
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member] | Real Estate [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 2,690 |  | 2,690 |  | 422
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 159 |  | 159 |  | 2,821
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member] | Other Collateral [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member] | Collateral Pledged [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 2,849 |  | 2,849 |  | 3,243
Allowance for loans, individually evaluated for impairment | 739 |  | 739 |  | 761
Total Commercial and Industrial Portfolio Segment [Member] |  |  |  |  |
Beginning balance | 21,295 | 17,342 | 19,380 | 13,379 |
Provision for credit losses | 868 | 2,258 | 2,762 | 2,359 |
Charge-offs | (1,878) | (565) | (2,006) | (729) |
Recoveries | 17 | 232 | 166 | 1,026 |
Ending balance | 20,302 | 19,267 | 20,302 | 19,267 |
Initial Allowance on PCD Loans |  | 0 |  | 3,232 |
Residential Real Estate Portfolio Segment [Member] |  |  |  |  |
Beginning balance | 13,004 | 9,178 | 10,314 | 7,993 |
Provision for credit losses | 333 | 569 | 3,043 | 1,109 |
Charge-offs | 0 | (17) | (43) | (30) |
Recoveries | 6 | 11 | 29 | 79 |
Ending balance | 13,343 | 9,741 | 13,343 | 9,741 |
Initial Allowance on PCD Loans |  | 0 |  | 590 |
Residential Real Estate Portfolio Segment [Member] | Real Estate [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 3,818 |  | 3,818 |  | 2,614
Residential Real Estate Portfolio Segment [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Residential Real Estate Portfolio Segment [Member] | Other Collateral [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Residential Real Estate Portfolio Segment [Member] | Collateral Pledged [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 3,818 |  | 3,818 |  | 2,614
Allowance for loans, individually evaluated for impairment | 322 |  | 322 |  | 338
Residential Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] |  |  |  |  |
Beginning balance | 4,169 | 3,190 | 3,597 | 3,677 |
Provision for credit losses | 55 | 146 | 625 | (349) |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 9 | 2 | 17 |
Ending balance | 4,224 | 3,345 | 4,224 | 3,345 |
Initial Allowance on PCD Loans |  | 0 |  | 0 |
Residential Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Real Estate [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 567 |  | 567 |  | 415
Residential Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Residential Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Other Collateral [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Residential Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Collateral Pledged [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 567 |  | 567 |  | 415
Allowance for loans, individually evaluated for impairment | 116 |  | 116 |  | 116
Residential Real Estate Portfolio Segment [Member] | Owner Occupied [Member] |  |  |  |  |
Beginning balance | 8,835 | 5,988 | 6,717 | 4,316 |
Provision for credit losses | 278 | 423 | 2,418 | 1,458 |
Charge-offs | 0 | (17) | (43) | (30) |
Recoveries | 6 | 2 | 27 | 62 |
Ending balance | 9,119 | 6,396 | 9,119 | 6,396 |
Initial Allowance on PCD Loans |  | 0 |  | 590 |
Residential Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Real Estate [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 3,251 |  | 3,251 |  | 2,199
Residential Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Residential Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Other Collateral [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Residential Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Collateral Pledged [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 3,251 |  | 3,251 |  | 2,199
Allowance for loans, individually evaluated for impairment | 206 |  | 206 |  | 222
Construction and Development [Member] |  |  |  |  |
Beginning balance | 6,752 | 6,214 | 7,186 | 4,789 |
Provision for credit losses | 227 | 731 | (207) | 1,809 |
Charge-offs | 0 | 0 | 0 | (72) |
Recoveries | 0 | 0 | 0 | 0 |
Ending balance | 6,979 | 6,945 | 6,979 | 6,945 |
Initial Allowance on PCD Loans |  | 0 |  | 419 |
Construction and Development [Member] | Real Estate [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Construction and Development [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Construction and Development [Member] | Other Collateral [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Construction and Development [Member] | Collateral Pledged [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Allowance for loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Consumer Portfolio Segment [Member] |  |  |  |  |
Beginning balance | 1,285 | 1,113 | 1,158 | 772 |
Provision for credit losses | 184 | 162 | 473 | 565 |
Charge-offs | (232) | (307) | (639) | (796) |
Recoveries | 131 | 148 | 376 | 497 |
Ending balance | 1,368 | 1,116 | 1,368 | 1,116 |
Initial Allowance on PCD Loans |  | 0 |  | 78 |
Consumer Portfolio Segment [Member] | Real Estate [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Consumer Portfolio Segment [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Consumer Portfolio Segment [Member] | Other Collateral [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 275 |  | 275 |  | 219
Consumer Portfolio Segment [Member] | Collateral Pledged [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 275 |  | 275 |  | 219
Allowance for loans, individually evaluated for impairment | 20 |  | 20 |  | 20
Finance Leases Portfolio Segment [Member] |  |  |  |  |
Beginning balance | 205 | 221 | 201 | 204 |
Provision for credit losses | 7 | (10) | 11 | 7 |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 0 | 0 |
Ending balance | 212 | 211 | 212 | 211 |
Initial Allowance on PCD Loans |  | 0 |  | 0 |
Finance Leases Portfolio Segment [Member] | Real Estate [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Finance Leases Portfolio Segment [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Finance Leases Portfolio Segment [Member] | Other Collateral [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Finance Leases Portfolio Segment [Member] | Collateral Pledged [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Allowance for loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Commercial Portfolio Segment [Member] | Credit Card Receivable [Member] |  |  |  |  |
Beginning balance | 230 | 208 | 211 | 162 |
Provision for credit losses | 20 | 13 | 123 | 12 |
Charge-offs | (5) | 0 | (105) | 0 |
Recoveries | 3 | 0 | 19 | 47 |
Ending balance | 248 | 221 | 248 | 221 |
Initial Allowance on PCD Loans |  | $ 0 |  | $ 0 |
Commercial Portfolio Segment [Member] | Credit Card Receivable [Member] | Real Estate [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Commercial Portfolio Segment [Member] | Credit Card Receivable [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Commercial Portfolio Segment [Member] | Credit Card Receivable [Member] | Other Collateral [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Commercial Portfolio Segment [Member] | Credit Card Receivable [Member] | Collateral Pledged [Member] |  |  |  |  |
Loans, individually evaluated for impairment | 0 |  | 0 |  | 0
Allowance for loans, individually evaluated for impairment | $ 0 |  | $ 0 |  | $ 0

X
- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References No definition available. + Details
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- Definition Amount of increase in allowance for credit loss on financing receivable from purchase of loan. Excludes financing receivable purchased with credit deterioration, loan acquired through business combination or acquisition, and net investment in lease. + References Reference 1: 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 + Details
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- Definition Amount of increase in allowance for credit loss on financing receivable from recovery. + References Reference 1: 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 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c)(4) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B + Details
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- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11C -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11C Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L(5)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480418/310-10-S99-4 + Details
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