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Employee Benefits (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Defined Contribution Plan [Line Items] |  |  |
Matched percentage by employer | 50.00% |  |
Maximum employee percentage of deferred salary matched by employer | 6.00% |  |
Non-elective safe-harbor contribution received each December 31st | 3.00% |  |
Employer contributions | $ 1,100 | $ 1,000 | $ 1,000
Maximum age benefit could be reduced or forfeited | 65 years |  |
Supplemental income benefit liability | $ 30 | 49 |
Supplemental income benefit expense | $ 21 | $ 29 | $ 29
Minimum [Member] |  |  |
Defined Contribution Plan [Line Items] |  |  |
Non-elective safe-harbor contribution received each December 31st | 1.00% |  |
Maximum [Member] |  |  |
Defined Contribution Plan [Line Items] |  |  |
Non-elective safe-harbor contribution received each December 31st | 10.00% |  |

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