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Income Taxes (Deferred Tax Assets Expiration) (Details) $ in Thousands | Dec. 31, 2018 USD ($)
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Operating Loss Carryforwards [Line Items] |
Total deferred tax assets | $ 2,798
2019 - 2030 [Member] |
Operating Loss Carryforwards [Line Items] |
Total deferred tax assets | 22
2031 - 2038 [Member] |
Operating Loss Carryforwards [Line Items] |
Total deferred tax assets | 1,453
No Expiration [Member] |
Operating Loss Carryforwards [Line Items] |
Total deferred tax assets | $ 1,323

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