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Discontinued Operations (Tables)
9 Months Ended
Jul. 30, 2011
Discontinued Operations [Abstract]  
Income Statement for Discontinued Operations
     The following amounts related to the CPU voltage regulation and PC thermal monitoring and Baseband Chipset Businesses have been segregated from continuing operations and reported as discontinued operations.
                 
    Nine Months Ended  
    July 30, 2011     July 31, 2010  
Gain on sale of discontinued operations before income taxes
  $ 10,000     $ 1,316  
Provision for income taxes
    3,500       457  
 
           
Gain on sale of discontinued operations, net of tax
  $ 6,500     $ 859