Stock Compensation Plans - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified		1 Months Ended		0 Months Ended			12 Months Ended		0 Months Ended		12 Months Ended
	Oct. 28, 2012	Aug. 02, 2011 Employee Stock Option [Member]	Apr. 30, 2007 2006 Plan [Member]	Dec. 18, 2007 2006 Plan [Member] 2007 Through 2011 [Member]	Dec. 18, 2007 2006 Plan [Member] 2008 Through 2012 [Member]	Dec. 18, 2007 2006 Plan [Member] Restricted Stock Units [Member]	Oct. 30, 2011 2006 Plan [Member] Restricted Stock Units [Member]	Oct. 31, 2010 2006 Plan [Member] Restricted Stock Units [Member]	May 11, 2011 2006 Plan [Member] Employee Stock Option [Member]	Dec. 18, 2007 2006 Plan [Member] Employee Stock Option [Member]	Oct. 28, 2012 1995 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grants	957,050
Aggregate number of shares issued			1,500,000
Fair market value of Company's common stock			100.00%
Restricted stock units granted						233,000
Weighted average grant date fair value						$ 13.32
Stock options granted to purchase common stock		7,000							15,000	152,996
Weighted average exercise price										$ 13.32
Vesting period				5 years	4 years				5 years
Forfeiture rate of stock option		20.00%
Unrecognized compensation cost related to non-vested stock-based compensation											$ 0.3
Weighted average period											1 year 8 months 12 days