Note 13. Commitments and Contingencies (Detail) (USD $)	3 Months Ended
	May 04, 2013	Oct. 27, 2012	Apr. 28, 2012
Purchase Commitment, Remaining Minimum Amount Committed	$ 19,300,000
Contractual Obligation	0
Direct Operating Cost, Royalty Expense	500,000		400,000
Proceeds from Grantors	4,800,000
Percentage of Royalties	4.50%
Accrued Royalties	700,000
Loss Contingency, Settlement Agreement, Consideration	1,800,000	6,300,000	1,400,000
Licensing Period Under Negotiation		3 years
Licensing Fees Under Negotiation		3,500,000
Operating Leases, Future Minimum Payments Due	12,946,000
Early Termination [Member]
Potential Early Termination Fees	300,000
Monthly Lease Payments	45,000
Operating Leases, Future Minimum Payments Due	1,100,000
Second Licensed Technology Audit Settlement [Member]
Payments for Other Operating Activities		$ 300,000