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Earnings Per Share - Schedule of Reconciliation of Weighted Average Basic Shares to Weighted Average Diluted Shares Outstanding (Detail) - shares
3 Months Ended 9 Months Ended
Oct. 28, 2017
Oct. 29, 2016
Oct. 28, 2017
Oct. 29, 2016
Earnings Per Share [Abstract]        
Weighted-average shares—basic 8,610,869 4,928,744 6,166,219 4,541,966
Effect of dilutive equity securities 439 19,246    
Weighted-average shares—diluted 8,611,308 4,947,990 6,166,219 4,541,966