Note 8 - Income Taxes (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2015	Jun. 30, 2014
Domestic Tax Authority [Member]
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	$ 38,300
State and Local Jurisdiction [Member]
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	16,600
Expired in 2014 [Member]
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration		$ 2,868
Expired in 2020 [Member]
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	$ 77