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Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Taxes (Textual) [Abstract]
Federal statutory income tax rate	21.00%	35.00%	35.00%
Valuation allowance for deferred tax assets	$ 0	$ 0
Unrecognized tax benefits	0	0
Impact of enactment of federal tax reform	$ 0	$ 1,793	$ 0
Earliest Tax Year
Income Taxes (Textual) [Abstract]
Open tax year	2015
Latest Tax Year
Income Taxes (Textual) [Abstract]
Open tax year	2018

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Income Taxes (Textual) [Abstract]

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Tax cuts and jobs act of 2017 change in tax rate income tax expense benefit.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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

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Tax year that remains open to examination under enacted tax laws, in CCYY format.

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Amount of unrecognized tax benefits.

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