Note 15 - Equity Incentive Plans - Stock Compensation Expense 2 (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Total stock-based compensation expense | $ 691 | $ 576 |
| Location, Statement of Income, Balance [Axis]: us-gaap:CostOfGoodsAndServicesSold | ||
| Total stock-based compensation expense | 0 | 2 |
| Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense | ||
| Total stock-based compensation expense | 664 | 502 |
| Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense | ||
| Total stock-based compensation expense | 0 | 11 |
| Location, Statement of Income, Balance [Axis]: us-gaap:SellingAndMarketingExpense | ||
| Total stock-based compensation expense | $ 27 | $ 61 |