Discontinued Operations (Details) (USD $)	4 Months Ended
	Jan. 20, 2013	Jan. 22, 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	37,743,000	194,794,000
Operating loss before income tax benefit	(5,262,000)	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	697,000
Additions and adjustments	1,869,000
Cash payments	(289,000)
Balance at end of period	$ 2,277,000