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Fair Values of Financial Instruments (Details 3) - Fair Value Measurements [Member] - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Impaired loans [Member] |  |
Fair Value Asset Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | $ 5,536 | $ 1,818
Foreclosed real estate [Member] |  |
Fair Value Asset Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 1,627 | 1,699
Fair Value, Inputs, Level 1 [Member] | Impaired loans [Member] |  |
Fair Value Asset Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Foreclosed real estate [Member] |  |
Fair Value Asset Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Impaired loans [Member] |  |
Fair Value Asset Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Foreclosed real estate [Member] |  |
Fair Value Asset Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Impaired loans [Member] |  |
Fair Value Asset Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 5,536 | 1,818
Fair Value, Inputs, Level 3 [Member] | Foreclosed real estate [Member] |  |
Fair Value Asset Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | $ 1,627 | $ 1,699

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