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Note 2 - Acquisitions (Tables)
 12 Months Ended
Aug. 31, 2013
Business Combinations [Abstract]  
Schedule of Business Acquisitions, by Acquisition [Table Text Block]

Year ended

 

August 31,

2013

   

August 25,

2012

 

August 27,

2011

Number of businesses acquired

    7       —         9    

Tangible assets acquired

  $ 7,494     $ —       $ 6,189    

Intangible assets and goodwill acquired

    23,326       —         26,367    

Liabilities assumed

    (106

)

    —         —    
                             

Acquisition of businesses

  $ 30,714     $ —       $ 32,556