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Income Taxes and Tax Credit Transactions (Textual) (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Tax Credit Carryforward [Line Items] |  |
Accruals for tax uncertainties | $ 0 | $ 0
Deferred income tax benefit | 300,000 | (600,000)
Current Income Tax Expense (Benefit) | 100,000 |
Other Assets [Member] |  |
Tax Credit Carryforward [Line Items] |  |
Net deferred tax assets | $ 100,000 | $ 600,000

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