Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Mar. 02, 2013	Dec. 01, 2012	Sep. 01, 2012	Jun. 02, 2012	Mar. 03, 2012	Nov. 26, 2011	Aug. 27, 2011	May 28, 2011	Mar. 02, 2013	Mar. 03, 2012	Feb. 26, 2011
Condensed Statement of Operations from Discontinued Businesses
Net sales									$ 0	$ 0	$ 0
Loss before income taxes (prior to gain on disposal)									0	0	0
Income tax benefit									0	0	0
Loss from operations, net of income taxes									0	0	0
Gain (loss) on disposal, net of income taxes									333	(52)	3,825
Earnings (loss) from discontinued operations, net of income taxes	95	0	238	0	(52)	0	0	0	333	(52)	3,825
Summary Balance Sheets of Discontinued Businesses
Accounts payable and accrued liabilities	177				799				177	799
Long-term liabilities	$ 482				$ 520				$ 482	$ 520