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CONDENSED CONSOLIDATED BALANCE SHEETS Unaudited (Parenthetical) - $ / shares
Jul. 29, 2017
Jan. 28, 2017
Jul. 30, 2016
Statement of Financial Position [Abstract]      
Common stock, par value per share $ 0.01 $ 0.01 $ 0.01
Common stock, shares authorized 50,000,000 50,000,000 50,000,000
Common stock, shares issued 20,552,245 20,569,198 20,599,601
Treasury shares, shares 3,533,262 2,433,925 1,777,305