Note 5 (Detail) - Share-based Compensation (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
Share-based compensation by plans	$ 277	$ 235	$ 560	$ 395
Per diluted share (in Dollars per share)	$ 0.01	$ 0.01	$ 0.03	$ 0.02
The above compensation is net of tax benefits	132	40	356	174
Stock Options [Member]
Share-based compensation by plans	215	198	390	293
Stock Purchase Plan [Member]
Share-based compensation by plans	45	37	137	102
Stock Issued to Outside Directors [Member]
Share-based compensation by plans	12		24
Restricted Stock [Member]
Share-based compensation by plans	$ 5		$ 9