Note 13 - Contingencies (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended					3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
	Feb. 26, 2012	Mar. 02, 2014	Mar. 03, 2013	Feb. 26, 2012	Mar. 02, 2014 Subsidiaries [Member]	Mar. 02, 2014 Two Insurance Carriers [Member]	Feb. 26, 2012 Insurance Carrier One [Member]	Feb. 26, 2012 Insurance Carrier One [Member]	Mar. 03, 2013 Isola Patent Infringement [Member]	Mar. 03, 2013 Isola Patent Infringement [Member]
Note 13 - Contingencies (Details) [Line Items]
Gain (Loss) Related to Litigation Settlement (in Dollars)				$ 1,598					$ (1,000)	$ (1,000)
Number Of Sites Of Company Or Subsidiaries That Have Been Named For Potential Environmental Remediation Liability		4
Number Of Insurance Carriers That Have Asserted Counter Claims To Lawsuit	1				1
Percentage Of Legal Defense And Remediation Costs Associated With Sites Reimbursed By Insurance Carriers		100.00%				100.00%	45.00%
Number Of Units Covered Under General Liability Insurance Coverage		3
Litigation Settlement, Expense (in Dollars)		$ 8	$ 56	$ 127
Number Of Insurance Carriers		2						1
Number Of Insurance Carriers That Have Filed Answers To Lawsuit	3