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Income Taxes (Details Narrative) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Increase (decrease) in valuation allowance | $ (1,100) | $ (9,200)
Net operating loss carryforwards | $ 79,000 | $ 77,000
Capital loss carryforwards expiration period start |  | 2019
Capital loss carryforwards expiration period end |  | 2037
U.S. corporate tax rate | 34.00% | 21.00%
Tax Year 2018 [Member] |  |
Net operating loss carryforwards | $ 2,000 |
Change In Enacted Rate [Member] |  |
Increase (decrease) in valuation allowance | (9,300) |
Expiring Operating Loss Carryforwards [Axis] |  |
Increase (decrease) in valuation allowance | $ 1,600 | $ 0

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