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Note 5 - Loans and the Allowance for Credit Losses - Loans Receivable on Nonaccrual Status (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Nonaccrual loans with ACL | $ 2,439 | $ 10,809
Nonaccrual loans without ACL | 44,999 | 41,715
Total Nonaccrual loans | 47,438 | 52,524
Commercial Portfolio Segment [Member] |  |
Nonaccrual loans with ACL | 1,683 | 1,763
Nonaccrual loans without ACL | 10,957 | 11,064
Total Nonaccrual loans | 12,640 | 12,827
Commercial Real Estate Portfolio Segment [Member] |  |
Nonaccrual loans with ACL | 65 | 8,013
Nonaccrual loans without ACL | 33,210 | 28,179
Total Nonaccrual loans | 33,275 | 36,192
Residential Mortgage [Member] |  |
Nonaccrual loans with ACL | 691 |
Nonaccrual loans without ACL | 832 |
Total Nonaccrual loans | 1,523 |
Residential Portfolio Segment [Member] |  |
Nonaccrual loans with ACL |  | 1,033
Nonaccrual loans without ACL |  | 2,472
Total Nonaccrual loans | $ 1,523 | $ 3,505

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