Note 10 - Geographic Regions (Details) - Financial Information by Geographic Region, Sales (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Aug. 31, 2014	Sep. 01, 2013	Aug. 31, 2014	Sep. 01, 2013
Sales:
Sales	$ 42,349	$ 44,497	$ 91,166	$ 87,935
North America [Member]
Sales:
Sales	19,289	22,885	40,584	43,618
Asia [Member]
Sales:
Sales	20,402	18,993	44,899	37,674
Europe [Member]
Sales:
Sales	$ 2,658	$ 2,619	$ 5,683	$ 6,643

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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