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Consolidated Statements of Operations (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 29, 2016
Oct. 31, 2015
Oct. 29, 2016
Oct. 31, 2015
Income Statement [Abstract]        
Discontinued operations, tax expense $ 13 $ 118 $ 28 $ 10