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Income Taxes (Detail Textuals) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Taxes [Line Items]
Tax rate as percentage of earnings before income taxes	7.20%	33.90%	11.30%	34.10%
Valuation allowance against certain capital loss carryforward	$ 46,000		$ 46,000
Tax Year 2017
Income Taxes [Line Items]
Federal corporate income tax rate			34.00%
Tax Year 2018
Income Taxes [Line Items]
Federal corporate income tax rate			21.00%

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Represents the Income taxes as a percentage of earnings before income taxes.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from reserves, classified as other.

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

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