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Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |
Deferred Tax Assets, Operating Loss Carryforwards | $ 3,629 | $ 4,094 |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 21.00% | 21.00%
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Deferred Tax Assets, Operating Loss Carryforwards | $ 3,629 | $ 4,094 |
State and Local Income Tax Expense (Benefit), Continuing Operations | $ 1,100 | $ 1,200 |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 21.00% | 21.00%
State and Local Jurisdiction [Member] |  |  |
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |
Deferred Tax Assets, Operating Loss Carryforwards | $ 500 | $ 600 |
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Deferred Tax Assets, Operating Loss Carryforwards | 500 | 600 |
Domestic Tax Authority [Member] |  |  |
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |
Deferred Tax Assets, Operating Loss Carryforwards | 3,100 | 3,500 |
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Deferred Tax Assets, Operating Loss Carryforwards | $ 3,100 | $ 3,500 |

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