Note 11 - Geographic Regions - Financial Information by Geographic Region, Sale (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Nov. 29, 2015	Nov. 30, 2014	Nov. 29, 2015	Nov. 30, 2014
North America [Member]
Sales	$ 18,006	$ 17,357	$ 57,651	$ 57,941
Asia [Member]
Sales	13,782	14,251	45,572	59,150
Europe [Member]
Sales	2,535	3,071	6,876	8,754
Sales	$ 34,323	$ 34,679	$ 110,099	$ 125,845

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Name:	us-gaap_SalesRevenueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration