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Summary of Significant Accounting Policies - Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Oct. 29, 2016
Oct. 31, 2015
Oct. 29, 2016
Oct. 31, 2015
Jan. 30, 2016
Income Taxes          
Income tax provision $ 489 $ (802) $ (1,936) $ (3,889)  
Effective tax rate (as a percent)     35.90% 34.20% 34.10%
Total amount of interest and penalties recognized 0 $ (36)      
Total amount of accrued interest and penalties $ 0   $ 0   $ 0
Federal tax          
Income Taxes          
Period of statute of limitations     3 years    
State tax          
Income Taxes          
Period of statute of limitations     4 years