Restructuring Charges (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Jun. 02, 2013	Feb. 26, 2012	Mar. 03, 2013
Nelco Technology (Zhuhai FTZ) Ltd. [Member]
Business closure expense			$ 2,730
Restructuring costs incurred during the period	200
Impairment of assets			3,620
Non-cash cumulative currency translation adjustment			1,465
Real estate property, at carrying value	1,890
Amount paid on obligation	91
Park Advanced Composite Materials, Inc. [Member]
Business closure expense		1,250
Restructuring costs incurred during the period			820
Impairment of assets		928
Amount paid on obligation	15		1,091
Neltec Europe SAS [Member]
Amount paid on obligation	127
Remaining obligations and potential liabilities			207
Neltec Europe SAS [Member] | Scenario, Forecast [Member]
Remaining obligations and potential liabilities	$ 80