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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Aug. 04, 2018	Jul. 29, 2017	Aug. 04, 2018	Jul. 29, 2017	Dec. 31, 2017
Income Taxes
Income tax expense	$ 2,304	$ 4,245	$ 925	$ 1,835
Estimated annual effective tax rate	26.00%	39.30%	56.20%	47.30%
Federal statutory rate			21.00%		35.00%

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- Definition

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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