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Note 7 - Loans Receivable and Credit Disclosures (Details Textual) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) | Dec. 31, 2020 USD ($)
Loans and Leases Receivable, Gross, Total |  | $ 1,143,305 |  | $ 1,143,305 |  | $ 1,143,305 | $ 1,147,577
Loans and Leases Receivable, Deferred Income, Total | [1] | 416 |  | 416 |  | 416 | 857
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans |  | 154,000 | $ 247,000 | 523,000 | $ 747,000 |  |
Financing Receivable, Nonaccrual |  | 12,500 |  | 12,500 |  | 12,500 | 15,300
Financing Receivable, Troubled Debt Restructuring |  | 10,600 |  | 10,600 |  | $ 10,600 | $ 11,300
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts |  |  |  |  |  | 0 |
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down |  | 0 | $ 15 |  | $ 31 |  |
Financing Receivables, Impaired, Troubled Debt Restructuring, Recoveries |  |  |  | 262 |  |  |
Financing Receivable, Modifications, Principal Balance, Number of Contracts |  |  |  |  |  |  | 24
Financing Receivable Modifications, Principal Balance |  |  |  |  |  |  | $ 45,900
Commercial Portfolio Segment [Member] |  |  |  |  |  |  |
Loans and Leases Receivable, Gross, Total | [2] | 85,569 |  | 85,569 |  | $ 85,569 | 122,535
SBA CARES Act Paycheck Protection Program Member |  |  |  |  |  |  |
Loans and Leases Receivable, Deferred Income, Total |  | 700 |  | 700 |  | 700 | 900
SBA CARES Act Paycheck Protection Program Member | Commercial Portfolio Segment [Member] |  |  |  |  |  |  |
Loans and Leases Receivable, Gross, Total |  | $ 14,800 |  | $ 14,800 |  | $ 14,800 | $ 50,900
[1] | Deferred loan (fees) and costs, net includes $0.7 million and $0.9 million of fees, net of costs, related to the PPP loans as of September 30, 2021 and December 31, 2020, respectively.
[2] | Commercial loan portfolio includes $14.8 million and $50.9 million of Paycheck Protection Program ("PPP") loans as of September 30, 2021 and December 31, 2020, respectively.

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