Debt (Details) (USD $)	3 Months Ended
	Jun. 01, 2013	Jun. 02, 2012	Mar. 02, 2013
Debt (Textual) [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity	$ 100,000,000
Line of Credit Facility, Expiration Date	Oct. 19, 2017
Line of Credit Facility, Amount Outstanding	0		0
Minimum net worth required	268,100,000
Net Worth	335,800,000
Adjusted debt-to-EBITDA ratio	0.00
Repayments of Other Debt	10,000,000
Write off of Deferred Debt Issuance Cost	200,000
Decrease in non-credit facility debt	25,000,000
Excess of non credit facility debt on unrestricted cash balances, cash equivalents and short-term marketable securities available for sale	15,000,000
Interest payments	200,000	200,000
Maximum [Member]
Debt (Textual) [Abstract]
Adjusted debt-to-EBITDA ratio	3.00
Industrial Revenue Bonds [Member]
Debt (Textual) [Abstract]
Debt	20,400,000
Notes Payable, Other Payables [Member]
Debt (Textual) [Abstract]
Debt	$ 400,000