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v3.22.1

Note 3 - Leases (Details Textual) $ in Thousands |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Aug. 03, 2020 USD ($) ft² | Mar. 31, 2022 USD ($) | Mar. 31, 2021 USD ($) | Mar. 31, 2022 USD ($) | Mar. 31, 2021 USD ($) | Mar. 21, 2021 USD ($) | Apr. 27, 2021 ft²
Operating Lease, Payments |  | $ 25 | $ 53 | $ 60 | $ 176 |  |
Finance Lease, Principal Payments |  | $ 38 | $ 3 | $ 56 | $ 9 | $ 9 |
Austin, Texas [Member] |  |  |  |  |  |  |
Increase (Decrease) in Operating Lease Liability | $ (506) |  |  |  |  |  |
Austin, Texas [Member] | Research And Development Facility [Member] |  |  |  |  |  |  |
Area of Real Estate Property (Square Foot) | ft² |  |  |  |  |  |  | 5,960
Lessee, Operating Lease, Term of Contract (Month) |  |  |  |  |  |  | 36 months
Austin, Texas [Member] | Office Building [Member] |  |  |  |  |  |  |
Area of Real Estate Property (Square Foot) | ft² | 5,219 |  |  |  |  |  |
Increase (Decrease) in Operating Lease, Right-of-Use Assets | $ (539) |  |  |  |  |  |
Lease Expiration Date | Dec. 31, 2023 |  |  |  |  |  |

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