Note 15 - Equity Incentive Plans - Stock Compensation Expense 2 (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Total stock-based compensation expense | $ 148 | $ 139 | $ 545 | $ 463 |
| Location, Statement of Income, Balance [Axis]: us-gaap:CostOfGoodsAndServicesSold | ||||
| Total stock-based compensation expense | 0 | 0 | 0 | 1 |
| Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense | ||||
| Total stock-based compensation expense | 141 | 120 | 526 | 394 |
| Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense | ||||
| Total stock-based compensation expense | 0 | 8 | 0 | 11 |
| Location, Statement of Income, Balance [Axis]: us-gaap:SellingAndMarketingExpense | ||||
| Total stock-based compensation expense | $ 7 | $ 11 | $ 19 | $ 57 |