Acquisitions (Details) (USD $)	3 Months Ended	12 Months Ended		25 Months Ended
	Jul. 30, 2011	Oct. 29, 2011	Oct. 31, 2009	Jul. 31, 2009	Jun. 09, 2011	Oct. 30, 2010
Acquisitions (Textuals) [Abstract]
Payment related to the purchase of shares of Integrant Technologies				$ 8,400,000
Additional cash payments for the achievement of revenue- based milestones			3,100,000
Additional cash payments for the achievement of Technologies milestones			3,200,000
Fair value of the consideration transferred totaled					27,800,000
Initial cash payments					14,000,000
Contingent consideration					13,800,000
Contingent consideration, additional cash payments					15,000,000
Payments for contingent consideration		0
Goodwill		18,900,000
In-process research and development		12,200,000
Deferred tax liabilities		3,300,000
Obligated to pay royalties on revenue recognized from the sale of Lyric products and licenses		25,000,000
Obligation payment period		20 years
Royalty payments		0
Acquisition related costs	200,000
Date of acquisition of outstanding stock of privately-held Lyric Semiconductor, Inc		2011-06-09
Period of cash payments related to contingent consideration		payable during the period from June 2011 through June 2016
Fair value of the contingent consideration		$ 13,973,000				$ 0