Note 3 - Intangible Assets, Net (Details) - Finite-Lived Intangible Assets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Jun. 30, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carring Amount	$ 2,419	$ 2,419
Accumulated Amortization	1,573	1,539
Net	846	880
Trade Names and Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carring Amount	1,525	1,525
Accumulated Amortization	834	815
Net	691	710
Unpatented Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carring Amount	547	547
Accumulated Amortization	510	500
Net	37	47
Licensing Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carring Amount	347	347
Accumulated Amortization	229	224
Net	$ 118	$ 123