Note 13 - Geographic Regions - Financial Information by Geographic Region, Sale (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 26, 2017	Nov. 27, 2016	Aug. 28, 2016	May 29, 2016	Feb. 28, 2016	Nov. 29, 2015	Aug. 30, 2015	May 31, 2015	Feb. 26, 2017	Feb. 28, 2016	Mar. 01, 2015
Sales	$ 27,599	$ 26,462	$ 29,058	$ 31,490	$ 35,756	$ 34,323	$ 37,947	$ 37,829	$ 114,609	$ 145,855	$ 162,086
Long-lived assets	29,448				32,592				29,448	32,592	36,377
North America [Member]
Sales									60,949	75,215	75,395
Long-lived assets	20,794				22,846				20,794	22,846	23,562
Asia [Member]
Sales									44,613	61,264	76,000
Long-lived assets	8,440				9,478				8,440	9,478	12,490
Europe [Member]
Sales									9,047	9,376	10,691
Long-lived assets	$ 214				$ 268				$ 214	$ 268	$ 325