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Note 4 - Loans Receivable and Allowance for Credit Losses on Loans - Schedule of Allowance for Credit Losses by Category (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Beginning balance | $ 27,992 | $ 25,635 | $ 26,172
Provision for credit losses on loans | 5,770 | 6,623 | 500
Charge-offs | (3,476) | (2,465) | (1,793)
Recoveries | 1,248 | 1,058 | 756
Net charge-offs | (2,228) | (1,407) | (1,037)
Total ending ACL balance | 31,534 | 27,992 | 25,635
Loans individually evaluated for impairment |  |  | 1,163
Loans collectively evaluated for impairment |  |  | 24,472
Loans individually evaluated for impairment |  |  | 5,829
Loans collectively evaluated for impairment |  |  | 1,748,346
Ending balance | 2,433,015 | 2,218,852 | 1,754,175
Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |
Beginning balance |  | (2,859) |
Total ending ACL balance |  |  | (2,859)
Real Estate Portfolio Segment [Member] |  |  |
Beginning balance | 12,123 | 14,798 | 13,846
Provision for credit losses on loans | 1,994 | 2,559 | 952
Charge-offs | (10) | 0 | 0
Recoveries | 0 | 0 | 0
Net charge-offs | (10) | 0 | 0
Total ending ACL balance | 14,107 | 12,123 | 14,798
Loans individually evaluated for impairment |  |  | 23
Loans collectively evaluated for impairment |  |  | 14,775
Loans individually evaluated for impairment |  |  | 781
Loans collectively evaluated for impairment |  |  | 1,089,522
Ending balance | 1,530,381 | 1,421,260 | 1,090,303
Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |
Beginning balance |  | (5,234) |
Total ending ACL balance |  |  | (5,234)
Consumer Portfolio Segment [Member] |  |  |
Beginning balance | 12,109 | 4,280 | 6,696
Provision for credit losses on loans | 3,465 | 3,158 | (1,417)
Charge-offs | (3,465) | (2,465) | (1,755)
Recoveries | 1,248 | 1,058 | 756
Net charge-offs | (2,217) | (1,407) | (999)
Total ending ACL balance | 13,357 | 12,109 | 4,280
Loans individually evaluated for impairment |  |  | 219
Loans collectively evaluated for impairment |  |  | 4,061
Loans individually evaluated for impairment |  |  | 629
Loans collectively evaluated for impairment |  |  | 421,414
Ending balance | 646,753 | 569,572 | 422,043
Consumer Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |
Beginning balance |  | 6,078 |
Total ending ACL balance |  |  | 6,078
Commercial Business Portfolio Segment [Member] |  |  |
Beginning balance | 3,760 | 6,536 | 4,939
Provision for credit losses on loans | 311 | 906 | 1,635
Charge-offs | (1) | 0 | (38)
Recoveries | 0 | 0 | 0
Net charge-offs | (1) | 0 | (38)
Total ending ACL balance | 4,070 | 3,760 | 6,536
Loans individually evaluated for impairment |  |  | 921
Loans collectively evaluated for impairment |  |  | 5,615
Loans individually evaluated for impairment |  |  | 4,419
Loans collectively evaluated for impairment |  |  | 237,410
Ending balance | 255,881 | 228,020 | 241,829
Commercial Business Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |
Beginning balance |  | (3,682) |
Total ending ACL balance |  |  | (3,682)
Unallocated Financing Receivables [Member] |  |  |
Beginning balance | 0 | 21 | 691
Provision for credit losses on loans | 0 | 0 | (670)
Charge-offs | 0 | 0 | 0
Recoveries | 0 | 0 | 0
Net charge-offs | 0 | 0 | 0
Total ending ACL balance | $ 0 | 0 | 21
Loans individually evaluated for impairment |  |  | 0
Loans collectively evaluated for impairment |  |  | 21
Loans individually evaluated for impairment |  |  | 0
Loans collectively evaluated for impairment |  |  | 0
Ending balance |  |  | 0
Unallocated Financing Receivables [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |
Beginning balance |  | $ (21) |
Total ending ACL balance |  |  | $ (21)

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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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