Discontinued Operations (Details) (USD $)	3 Months Ended		6 Months Ended
	Apr. 14, 2013	Apr. 15, 2012	Apr. 14, 2013	Apr. 15, 2012	Sep. 30, 2012
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Inventories					$ 26,844,000
Property and equipment, net					3,747,000
Total assets of discontinued operations					30,591,000
Revenue	0	140,146,000	37,743,000	334,940,000
Operating loss before income tax benefit	(175,000)	0	(5,437,000)	0
Disposal group, including discontinued operation, vendor contract costs			1,200,000
Restructuring reserve, accelerated depreciation			1,900,000
Contract Termination [Member]
Restructuring Reserve [Roll Forward]
Balance at beginning of period	2,277,000		697,000
Additions and adjustments	185,000		2,054,000
Cash payments	(346,000)		(635,000)
Balance at end of period	$ 2,116,000		$ 2,116,000