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Note 12 - 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 | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Recorded investment - with allowance | $ 6,709 | $ 3,375
Related allowance | 2,227 | 1,051
Fair Value, Nonrecurring [Member] |  |
Recorded investment - with allowance | 4,482 | 2,324
Related allowance | 2,227 | 1,051
Foreclosed assets held for sale | 1,685 | 2,886
Residential Portfolio Segment [Member] |  |
Foreclosed assets held for sale | 130 | 292
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |
Recorded investment - with allowance | 4,387 | 904
Related allowance | 1,325 | 149
Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member] |  |
Recorded investment - with allowance | 337 | 478
Related allowance | 34 | 48
Valuation, Market Approach [Member] | Land Receivable [Member] | Fair Value, Nonrecurring [Member] |  |
Fair value | 70 | 70
Valuation, Market Approach [Member] | Commercial Real Estate Receivables [Member] | Fair Value, Nonrecurring [Member] |  |
Fair value | 1,485 | 2,524
Valuation, Market Approach [Member] | Residential Portfolio Segment [Member] | Fair Value, Nonrecurring [Member] |  |
Fair value | 130 | 292
Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Fair Value, Nonrecurring [Member] |  |
Fair value | 2,307 | 17
Fair value | 2,307 | 17
Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member] | Fair Value, Nonrecurring [Member] |  |
Fair value | 303 | 430
Fair value | 303 | 430
Impaired Loans [Member] |  |
Recorded investment - with allowance | 6,709 | 3,375
Related allowance | 2,227 | 1,051
Fair value | 4,482 | 2,324
Fair value | 4,482 | 2,324
Impaired Loans [Member] | Valuation, Market Approach [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] |  |
Recorded investment - with allowance | 730 | 732
Related allowance | 194 | 176
Fair value | 536 | 556
Fair value | $ 536 | $ 556
Impaired Loans [Member] | Valuation, Market Approach [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Weighted Average [Member] |  |
Discount rate | 32.00% | 30.00%
Impaired Loans [Member] | Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member] |  |
Recorded investment - with allowance |  | $ 1,261
Related allowance |  | 678
Fair value |  | $ 583
Discount rate |  | 47.00%
Fair value |  | $ 583
Impaired Loans [Member] | Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |
Recorded investment - with allowance | $ 3,572 | 106
Related allowance | 1,265 | 89
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 | 815 | 798
Related allowance | 60 | 60
Fair value | $ 755 | $ 738
Discount rate | 16.00% | 15.00%
Fair value | $ 755 | $ 738
Impaired Loans [Member] | Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Weighted Average [Member] |  |
Discount rate | 35.00% | 69.00%
Impaired Loans [Member] | Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Commercial Construction and Land [Member] |  |
Recorded investment - with allowance | $ 1,255 |
Related allowance | 674 |
Fair value | 581 |
Fair value | $ 581 |
Impaired Loans [Member] | Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Commercial Construction and Land [Member] | Weighted Average [Member] |  |
Discount rate | 48.00% |
Impaired Loans [Member] | Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member] |  |
Recorded investment - with allowance | $ 337 | $ 478
Related allowance | $ 34 | $ 48
Impaired Loans [Member] | Valuation, Market Approach [Member] | Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member] | Weighted Average [Member] |  |
Discount rate | 42.00% | 46.00%
Foreclosed Assets Held For Sale [Member] |  |
Foreclosed assets held for sale | $ 1,685 | $ 2,886
Valuation allowance | 0 | 0
Fair value | 1,685 | 2,886
Foreclosed Assets Held For Sale [Member] | Valuation, Market Approach [Member] | Land Receivable [Member] |  |
Foreclosed assets held for sale | 70 | 70
Valuation allowance | $ 0 | $ 0
Foreclosed Assets Held For Sale [Member] | Valuation, Market Approach [Member] | Land Receivable [Member] | Weighted Average [Member] |  |
Discount rate | 53.00% | 53.00%
Foreclosed Assets Held For Sale [Member] | Valuation, Market Approach [Member] | Commercial Real Estate Receivables [Member] |  |
Foreclosed assets held for sale | $ 1,485 | $ 2,524
Valuation allowance | $ 0 | $ 0
Foreclosed Assets Held For Sale [Member] | Valuation, Market Approach [Member] | Commercial Real Estate Receivables [Member] | Weighted Average [Member] |  |
Discount rate | 34.00% | 39.00%
Foreclosed Assets Held For Sale [Member] | Valuation, Market Approach [Member] | Residential Portfolio Segment [Member] |  |
Foreclosed assets held for sale | $ 130 | $ 292
Valuation allowance | $ 0 | $ 0
Foreclosed Assets Held For Sale [Member] | Valuation, Market Approach [Member] | Residential Portfolio Segment [Member] | Weighted Average [Member] |  |
Discount rate | 61.00% | 46.00%

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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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