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Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands | Dec. 31, 2020 | Jun. 30, 2020 | Jul. 01, 2019
--- | --- | --- | ---
Operating Lease, Right-of-Use Asset | $ 7,684 | $ 8,663 |
Operating Lease, Liability, Total | 8,416 | 9,397 |
Retained Earnings (Accumulated Deficit), Ending Balance | $ (403) | $ (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

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