Impairment of Long-Lived Assets (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 29, 2016
Oct. 29, 2016
Oct. 31, 2015
Impairment of Long-Lived Assets      
Impairment expense related to leasehold improvements and fixtures and equipment $ 61 $ 282 $ 0