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Note 5 - Loans and the Allowance for Credit Losses - Loans Receivable on Nonaccrual Status (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Nonaccrual loans with ACL | $ 22,480 | $ 34,336
Nonaccrual loans without ACL | 33,579 | 10,118
Total Nonaccrual loans | 56,059 | 44,454
Commercial Portfolio Segment [Member] |  |
Nonaccrual loans with ACL | 21,604 | 23,512
Nonaccrual loans without ACL | 555 | 1,745
Total Nonaccrual loans | 22,159 | 25,257
Commercial Real Estate Portfolio Segment [Member] |  |
Nonaccrual loans with ACL | 70 | 10,220
Nonaccrual loans without ACL | 29,754 | 6,597
Total Nonaccrual loans | 29,824 | 16,817
Residential Portfolio Segment [Member] |  |
Nonaccrual loans with ACL | 806 | 604
Nonaccrual loans without ACL | 3,270 | 1,776
Total Nonaccrual loans | $ 4,076 | $ 2,380

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