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Note 3 - Securities Available For Sale (Tables)
12 Months Ended
Jul. 28, 2012
Available-for-sale Securities [Table Text Block]
   
Cost
   
Gross
Unrealized
Losses
   
Gross
Unrealized
Gains
   
Estimated
Fair Value
 
Money market
  $ 5,205     $ -     $ -     $ 5,205  
Equity securities of related parties
    4,796       478       41       4,359  
Total available-for-sale securities
    10,001       478       41       9,564  
Amounts classified as cash equivalents
    (5,205 )     -       -       (5,205 )
Amounts classified as securities held for sale
  $ 4,796     $ 478     $ 41     $ 4,359