Note 1 - Accounting Policies - Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Balance at Beginning of Period		$ 92	$ 68	$ 38
Charged to Costs and Expenses			49	31
Deductions	[1]	$ (77)	(25)	(1)
Balance at End of Period		$ 15	$ 92	$ 68

[1] Uncollectible accounts written off, net of recoveries.