Property and Equipment (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Dec. 03, 2011	Sep. 01, 2012	Aug. 27, 2011
Property and Equipment
Property and Equipment, gross	$ 15,969	$ 16,104
Accumulated depreciation	(13,721)	(13,951)
Property and Equipment, net	2,248	2,153
Gain on insurance recovery	279		200
New capital lease obligations incurred		54	38
Land
Property and Equipment
Property and Equipment, gross	437	437
Land improvements
Property and Equipment
Property and Equipment, gross	1,561	1,561
Land improvements | Minimum
Property and Equipment
Estimated Useful Lives		10 years
Land improvements | Maximum
Property and Equipment
Estimated Useful Lives		20 years
Buildings and improvements
Property and Equipment
Property and Equipment, gross	1,842	1,842
Buildings and improvements | Minimum
Property and Equipment
Estimated Useful Lives		10 years
Buildings and improvements | Maximum
Property and Equipment
Estimated Useful Lives		40 years
Machinery and equipment
Property and Equipment
Property and Equipment, gross	$ 12,129	$ 12,264
Machinery and equipment | Minimum
Property and Equipment
Estimated Useful Lives		3 years
Machinery and equipment | Maximum
Property and Equipment
Estimated Useful Lives		20 years