Summary of Significant Accounting Policies (Details 3) (USD $)	9 Months Ended		12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	1 Months Ended			9 Months Ended		1 Months Ended		9 Months Ended				9 Months Ended	3 Months Ended		9 Months Ended	3 Months Ended
	Oct. 27, 2012 item	Oct. 29, 2011	Jan. 28, 2012	Oct. 27, 2012 Minimum	Jan. 28, 2012 Minimum	Oct. 27, 2012 Maximum	Jan. 28, 2012 Maximum	Jun. 30, 2010 Non-Qualified Stock Option Robert Margolis installment	Jan. 31, 2012 Non-Qualified Stock Option Robert Margolis	Jan. 31, 2011 Non-Qualified Stock Option Robert Margolis	Oct. 27, 2012 Stock Options	Jan. 28, 2012 Stock Options	Aug. 31, 2010 Stock Options Mr. Stupp Stock Option Agreement	Oct. 27, 2012 Stock Options Mr. Stupp Stock Option Agreement	Oct. 27, 2012 Stock Options Employees	Oct. 27, 2012 Stock Options Minimum Employees	Oct. 27, 2012 Stock Options Maximum Employees	Oct. 27, 2012 2003 Plan	Oct. 27, 2012 2003 Plan Maximum	Apr. 28, 2012 2003 Plan Stock Options Employees	Oct. 27, 2012 2006 Plan	Oct. 27, 2012 2006 Plan Maximum	Jul. 28, 2012 2006 Plan Stock Options Employees	Apr. 28, 2012 2006 Plan Stock Options Employees	Jul. 28, 2012 2006 Plan Stock Options Non-employee directors	Jul. 28, 2012 2006 Plan Stock Options Employees and non-employee directors	Jul. 28, 2012 2006 Plan Restricted stock awards Non-employee directors
Summary of Significant Accounting Policies
Number of equity-based compensation plans	2
Stock-based compensation
Vesting period															3 years
Expiration period																7 years	10 years			7 years				7 years		7 years
Number of shares authorized for grant																			250,000			750,000
Maximum number of shares which may be granted to an individual in any calendar year																			100,000			100,000
Number of stock options granted (in shares)								100,000			293,000		300,000							70,000				10,000		213,000
Exercise price of stock option granted (in dollars per share)								$ 18.49			$ 11.75									$ 10.92			$ 13.06	$ 10.92	$ 14.12
Number of shares available for issuance																		55,315			52,500
Restricted stock awards granted																											7,500
Restricted stock awards granted to each non-employee director																											1,500
Exercised (in shares)											5,500										5,500
Exercise price of options exercised (in dollars per share)											$ 13.06										$ 13.06
Number of equal installments for vesting of option								2
Number of shares that vest in each equal installment									50,000	50,000
Number of shares subject to option											1,075,000	973,833		187,500
Stock-based compensation expense recognized (in dollars)	$ 647,000	$ 544,000
Weighted average assumptions
Expected Dividend Yield (as a percent)				5.67%	4.65%	7.33%	6.67%
Expected Volatility (as a percent)				51.63%	49.28%	53.33%	51.21%
Avg. Risk-Free Rate (as a percent)			1.10%	0.57%		1.01%
Expected Life	4 years 6 months				4 years 6 months		5 years
Estimated Forfeiture Rate (as a percent)	17.00%		30.00%