Note 3 - Intangible Assets, net (Detail) - Finite-Lived Intangible Assets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Jun. 30, 2012
Gross Carring Amount	$ 2,419	$ 2,419
Accumulated Amortization	1,368	1,265
Net	1,051	1,154
Trade Names [Member]
Gross Carring Amount	1,525	1,525
Accumulated Amortization	720	663
Net	805	862
Unpatented Technology [Member]
Gross Carring Amount	547	547
Accumulated Amortization	450	420
Net	97	127
Licensing Agreements [Member]
Gross Carring Amount	347	347
Accumulated Amortization	198	182
Net	$ 149	$ 165

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph a(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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