Note 4 (Detail) - Calculation of EPS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 30, 2013	Mar. 24, 2012	Mar. 30, 2013	Mar. 24, 2012
Basic EPS
Net Earnings available to common stockholders (in Dollars)	$ 12,660	$ 10,423	$ 22,886	$ 15,908
Net Earnings available to common stockholders	18,800	18,858	18,803	18,832
Net Earnings available to common stockholders (in Dollars per share)	$ 0.67	$ 0.55	$ 1.22	$ 0.84
Effect of Dilutive Securities
Options	86	72	75	70
Options (in Dollars per share)			$ (0.01)
Diluted EPS
Net Earnings available to common stockholders plus assumed conversions (in Dollars)	$ 12,660	$ 10,423	$ 22,886	$ 15,908
Net Earnings available to common stockholders plus assumed conversions	18,886	18,930	18,878	18,902
Net Earnings available to common stockholders plus assumed conversions (in Dollars per share)	$ 0.67	$ 0.55	$ 1.21	$ 0.84