Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	Mar. 31, 2021	Jun. 30, 2020	Jul. 01, 2019
Operating Lease, Right-of-Use Asset	$ 7,673	$ 8,663
Operating Lease, Liability, Total	8,409	9,397
Retained Earnings (Accumulated Deficit), Ending Balance	$ (260)	$ (1,920)
Accounting Standards Update 2016-02 [Member]
Operating Lease, Right-of-Use Asset			$ 10,400
Operating Lease, Liability, Total			10,800
Accounting Standards Update 2016-02 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Retained Earnings (Accumulated Deficit), Ending Balance			$ 400