Note 11 - Geographic Regions - Financial Information by Geographic Region, Sale (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Nov. 27, 2016	Nov. 29, 2015	Nov. 27, 2016	Nov. 29, 2015
Sales	$ 26,462	$ 34,323	$ 87,010	$ 110,099
North America [Member]
Sales	13,038	18,006	45,865	57,651
Asia [Member]
Sales	10,794	13,782	34,060	45,572
Europe [Member]
Sales	$ 2,630	$ 2,535	$ 7,085	$ 6,876

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=63488584&loc=d3e20235-122688

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