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Note 21 - Fair Value Measurements and Fair Values of Financial Instruments - Valuation Techniques and the Unobservable Inputs Used in Determining Fair Value - Nonrecurring Basis (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Recorded investment - with allowance | $ 3,375 | $ 4,851
Related allowance | 1,051 | 1,605
Fair Value, Nonrecurring [Member] |  |
Recorded investment - with allowance | 2,324 | 3,246
Related allowance | 1,051 | 1,605
Fair value |  | 3,246
Fair value |  | 3,246
Foreclosed assets held for sale | 2,886 | 1,703
Fair value |  | 1,703
Residential Portfolio Segment [Member] |  |
Foreclosed assets held for sale | 292 | 64
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] |  |
Recorded investment - with allowance | 0 | 2,515
Related allowance | 0 | 781
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |
Recorded investment - with allowance | 904 | 1,340
Related allowance | 149 | 659
Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member] |  |
Recorded investment - with allowance | 478 | 487
Related allowance | 48 | 49
Valuation, Market Approach [Member] | Land Receivable [Member] | Fair Value, Nonrecurring [Member] |  |
Fair value | 70 | 110
Valuation, Market Approach [Member] | Commercial Real Estate Receivables [Member] | Fair Value, Nonrecurring [Member] |  |
Fair value | 2,524 | 1,529
Valuation, Market Approach [Member] | Residential Portfolio Segment [Member] | Fair Value, Nonrecurring [Member] |  |
Fair value | 292 | 64
Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Fair Value, Nonrecurring [Member] |  |
Fair value |  | 1,734
Fair value |  | 1,734
Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Fair Value, Nonrecurring [Member] |  |
Fair value | 17 | 0
Fair value | 17 | 0
Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member] | Fair Value, Nonrecurring [Member] |  |
Fair value | 430 | 438
Fair value | 430 | 438
Impaired Loans [Member] |  |
Recorded investment - with allowance | 3,375 | 4,851
Related allowance | 1,051 | 1,605
Fair value | $ 2,324 |
Discount rate |  |
Fair value | $ 2,324 |
Impaired Loans [Member] | Valuation, Market Approach [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] |  |
Recorded investment - with allowance | 732 | 509
Related allowance | 176 | 116
Fair value | 556 | 393
Fair value | $ 556 | $ 393
Impaired Loans [Member] | Valuation, Market Approach [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Weighted Average [Member] |  |
Discount rate | 30.00% | 26.00%
Impaired Loans [Member] | Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member] |  |
Recorded investment - with allowance | $ 1,261 | $ 2,515
Related allowance | 678 | $ 781
Fair value | $ 583 |
Discount rate | 47.00% |
Fair value | $ 583 |
Impaired Loans [Member] | Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Weighted Average [Member] |  |
Discount rate |  | 16.00%
Impaired Loans [Member] | Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |
Recorded investment - with allowance | 106 | $ 75
Related allowance | 89 | 75
Impaired Loans [Member] | Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Measurement Input, Discount to Borrower's Financial Statement Value [Member] |  |
Recorded investment - with allowance | 798 | 1,265
Related allowance | 60 | 584
Fair value | $ 738 | $ 681
Discount rate | 15.00% | 36.00%
Fair value | $ 738 | $ 681
Impaired Loans [Member] | Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Weighted Average [Member] |  |
Discount rate | 69.00% | 100.00%
Impaired Loans [Member] | Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member] |  |
Recorded investment - with allowance | $ 478 | $ 487
Related allowance | $ 48 | $ 49
Impaired Loans [Member] | Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member] | Weighted Average [Member] |  |
Discount rate | 46.00% | 56.00%
Foreclosed Assets Held For Sale [Member] |  |
Foreclosed assets held for sale | $ 2,886 | $ 1,703
Valuation allowance | 0 | 0
Fair value | 2,886 |
Foreclosed Assets Held For Sale [Member] | Valuation, Market Approach [Member] | Land Receivable [Member] |  |
Foreclosed assets held for sale | 70 | 110
Valuation allowance | $ 0 | $ 0
Foreclosed Assets Held For Sale [Member] | Valuation, Market Approach [Member] | Land Receivable [Member] | Weighted Average [Member] |  |
Discount rate | 53.00% | 61.00%
Foreclosed Assets Held For Sale [Member] | Valuation, Market Approach [Member] | Commercial Real Estate Receivables [Member] |  |
Foreclosed assets held for sale | $ 2,524 | $ 1,529
Valuation allowance | $ 0 | $ 0
Foreclosed Assets Held For Sale [Member] | Valuation, Market Approach [Member] | Commercial Real Estate Receivables [Member] | Weighted Average [Member] |  |
Discount rate | 39.00% | 20.00%
Foreclosed Assets Held For Sale [Member] | Valuation, Market Approach [Member] | Residential Portfolio Segment [Member] |  |
Foreclosed assets held for sale | $ 292 | $ 64
Valuation allowance | $ 0 | $ 0
Foreclosed Assets Held For Sale [Member] | Valuation, Market Approach [Member] | Residential Portfolio Segment [Member] | Weighted Average [Member] |  |
Discount rate | 46.00% | 68.00%

X
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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References No definition available. + Details
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