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Income Taxes (Narrative) (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Operating Loss Carryforwards [Line Items] |  |
Decrease in valuation allowance | $ 166,000 |
Percentage of future taxable income | 80.00% |
Intersest and penalties on unrecognized tax benefits | $ 0 | $ 0
Federal [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards | 13,800,000 |
Net operating loss carryforwards expiring in varying amounts starting in 2033 to 2036 if not utilized | 12,800,000 |
Indefinite carryforward period amount | $ 1,000,000 |
Federal [Member] | Minimum [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards expiration date | Dec. 31, 2033 |
Federal [Member] | Maximum [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards expiration date | Dec. 31, 2036 |

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