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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 22, 2017
Income tax rate	21.00%	35.00%	35.00%
Increase in income tax expense		$ 2,502
Decrease in net deferred tax assets		(2,502)
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2030
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 0	408
Income tax provision included in expense	94	106
Income tax provision included in expense, federal benefit	11	13
Income tax provision included in expense, penalties and accrued interest	200	$ 106
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	132,204
U.S. Federal [Member]
Operating Loss Carryforwards	83,739
Tax Credit Carryforwards	$ 2,015
U.S. Federal [Member] | Earliest Tax Year [Member]
Income Tax Examination, Year under Examination	2015
U.S. Federal [Member] | Latest Tax Year [Member]
Income Tax Examination, Year under Examination	2016
Minimum [Member] | State and Local Jurisdiction [Member]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2020
Maximum [Member] | State and Local Jurisdiction [Member]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2037

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Amount of federal benefit that would be recognized on income tax penalties and expenses during the period.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity.

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