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CONSOLIDATED BALANCE SHEETS (Parenthetical) - shares
Jul. 30, 2016
Jul. 25, 2015
Preferred stock shares authorized (in shares) 10,000,000 10,000,000
Preferred stock shares issued (in shares) 0  
Class A Common Stock    
Common stock shares authorized (in shares) 20,000,000 20,000,000
Common stock shares issued (in shares) 10,190,000 10,192,000
Treasury stock shares (in shares) 353,000 343,000
Class B Common Stock    
Common stock shares authorized (in shares) 20,000,000 20,000,000
Common stock shares issued (in shares) 4,319,000 4,319,000
Common Stock, Shares, Outstanding 4,319,000 4,319,000