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v3.25.2

Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2023
Revenues | $ 1,000 | $ 1,700 |
Gain (Loss), Foreign Currency Transaction, before Tax | 0 | 0 |
Research and Development Expense | 8,142 | 6,790 |
Accounts Receivable, Allowance for Credit Loss, Current | 0 | 0 |
Inventory Valuation Reserves | 346 | 296 |
Impairment, Long-Lived Asset, Held-for-Use | 197 | 0 |
Treasury Stock, Value, Acquired, Cost Method | $ 0 | $ (0) | $ 119
Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income [Extensible Enumeration] | Operating Expenses |  |
Furniture, Fixtures, Equipment, and Leasehold Improvements [Member] |  |  |
Property, Plant and Equipment, Useful Life (Year) | 5 years |  |
Purchased Software [Member] |  |  |
Property, Plant and Equipment, Useful Life (Year) | 3 years |  |

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