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Loans Loans (Analysis of Troubled Debt Restructurings) (Details) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 USD ($) Modifications contract | Mar. 31, 2019 USD ($) Modifications contract | Dec. 31, 2019 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | contract | 0 | 1 |
Financing Receivable Modifications Additional Commitment To Lend | $ 812 |  | $ 1,100
Financing Receivable, Modifications, Number of Contracts | Modifications | 4 | 3 |
Financing Receivable, Troubled Debt Restructuring, Premodification | $ 1,235 | $ 833 |
Financing Receivable, Troubled Debt Restructuring, Postmodification | 1,235 | 833 |
Financing Receivable, Troubled Debt Restructuring, Subsequent Default | $ 0 | $ 26 |
Commercial Business [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Financing Receivable, Modifications, Number of Contracts | Modifications | 2 | 2 |
Financing Receivable, Troubled Debt Restructuring, Premodification | $ 272 | $ 616 |
Financing Receivable, Troubled Debt Restructuring, Postmodification | $ 272 | $ 616 |
Agriculture [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Financing Receivable, Modifications, Number of Contracts | Modifications | 1 | 0 |
Financing Receivable, Troubled Debt Restructuring, Premodification | $ 895 | $ 0 |
Financing Receivable, Troubled Debt Restructuring, Postmodification | $ 895 | $ 0 |
One-to-Four Family Residential [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Financing Receivable, Modifications, Number of Contracts | Modifications | 1 | 1 |
Financing Receivable, Troubled Debt Restructuring, Premodification | $ 68 | $ 217 |
Financing Receivable, Troubled Debt Restructuring, Postmodification | $ 68 | $ 217 |

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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524 + Details
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