Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2018
Income Taxes [Abstract]
Effective income tax rate	67.70%	(7.70%)	551.70%	34.80%
Federal statutory rate			21.00%		35.00%
Provision (benefit) for income taxes	$ (1,593,000)	$ 11,000	$ (3,349,000)	$ 622,000
Liability for uncertain tax positions	$ 0	$ 0	0	0
Income tax interest and penalties related to uncertain tax positions			$ 0	$ 0

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount recognized for uncertainty in income taxes classified as noncurrent.

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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