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Consolidated Balance Sheets (Parentheticals) - $ / shares
Jul. 02, 2017
Jul. 03, 2016
Common stock, shares outstanding (in shares) 5,160,971 5,160,971
Preferred stock, shares authorized (in shares) 2,000,000 2,000,000
Preferred stock, par value (in dollars per share) $ 10 $ 10
Common stock, par value (in dollars per share) $ 0.10 $ 0.10
Common stock, shares authorized (in shares) 10,000,000 10,000,000
Common Class A [Member]    
Common stock, shares outstanding (in shares) 3,746,454 3,746,454
Common stock, shares issued (in shares) 3,746,454 3,746,454
Common Class B [Member]    
Common stock, shares outstanding (in shares) 1,414,517 1,414,517
Common stock, shares issued (in shares) 1,414,517 1,414,517