Note 8 - Restructuring Charges (Details Textual) - USD ($)	3 Months Ended		12 Months Ended
	May 31, 2015	Nov. 30, 2014	Feb. 26, 2017	Feb. 28, 2016	Mar. 01, 2015	Feb. 29, 2004
Proceeds from Sale of Property, Plant, and Equipment				$ 2,057,000
Restructuring Charges			313,000	535,000	1,179,000
UNITED STATES
Restructuring Charges		$ 496,000
Payments for Restructuring				504,000	$ 504,000
Nelco Technology Zhuhai FTZ Ltd [Member]
Business Exit Costs			0	100,000
Proceeds from Sale of Property, Plant, and Equipment	$ 2,026,000
Gain (Loss) on Disposition of Property Plant Equipment			0
New England Laminates Co Inc [Member]
Business Exit Costs			$ 313,000	$ 435,000
Real Estate Held-for-sale						$ 0