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Note 9 - Loans - Nonaccrual Loans and Related Allowance for Credit Losses (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Loans with no related allowance, unpaid principal balance | $ 79,509 | $ 74,673
Loans with no related allowance, recorded investment | 56,028 | 54,140
Loans with related allowance, unpaid principal balance | 14,296 | 16,539
Loans with related allowance, recorded investment | 12,976 | 14,714
Allowance | 5,664 | 3,941
Unpaid principal balance | 93,805 | 91,212
Non-accrual loans | 69,004 | 68,854
Commercial Portfolio Segment [Member] |  |
Loans with no related allowance, unpaid principal balance | 17,132 | 27,341
Loans with no related allowance, recorded investment | 4,598 | 12,949
Loans with related allowance, unpaid principal balance | 14,296 | 14,643
Loans with related allowance, recorded investment | 12,976 | 12,823
Allowance | 5,664 | 3,734
Commercial Real Estate Portfolio Segment [Member] |  |
Loans with no related allowance, unpaid principal balance | 49,759 | 37,697
Loans with no related allowance, recorded investment | 39,558 | 32,205
Loans with related allowance, unpaid principal balance |  | 1,896
Loans with related allowance, recorded investment |  | 1,891
Allowance |  | 207
Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |
Loans with no related allowance, unpaid principal balance | 12,618 | 9,626
Loans with no related allowance, recorded investment | $ 11,872 | 8,978
Installment and Other Loans [Member ] |  |
Loans with no related allowance, unpaid principal balance |  | 9
Loans with no related allowance, recorded investment |  | $ 8

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