Note 5 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Maximum [Member]
Payment Terms, Severance Compensation	2 years
Period Of Warranty On Products Maximum	2 years
Minimum [Member]
Payment Terms, Severance Compensation	1 year 180 days
Period Of Warranty On Products	1 year
Scenario, Forecast [Member]
Potential Severance Costs	$ 1,900
Operating Leases, Rent Expense, Net	$ 652	$ 496
Term Of The Agreement	5 years
Automatic Renewal Period Under Sale And Purchase Agreement	2 years
Non Renewal Period Under Sale And Purchase Agreement	180 days
Short Term Investment Minimum	$ 2,000