Income Taxes (Expected Income Tax) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Income Taxes [Abstract]
Expected amount	$ (17,262)	$ 737
State income taxes, net of federal benefit	(3,831)	(654)
Percentage depletion	(1,475)	(3,278)
Stock-based compensation	326	(15)
Captive insurance	(271)
Return to provision adjustment	(78)	(592)
Other	244	(273)
Total tax expected	$ (22,347)	$ (4,075)

Expected State Income Taxes Net Of Federal Benefit

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Tax Expected Amount

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Total Tax Expected

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority noncontrolling interest income (loss), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, increase (decrease) in enacted tax rate, prior year income taxes, increase (decrease) in deferred tax asset valuation allowance, and other adjustments.

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