Note 12 - Commitments and Contingencies (Details Textual) |
12 Months Ended | |
|---|---|---|
|
Jun. 30, 2026
USD ($)
|
Jun. 30, 2025
USD ($)
|
|
| President and Chief Executive Officer and Chief Financial Officer [Member] | ||
| Employment Agreement, Termination, Base Salary Period (Month) | 12 months | |
| Employment Agreement, Termination for Change of Control, Base Salary Period (Month) | 12 months | |
| The 401(k) Profit Sharing Plan [Member] | ||
| Defined Contribution Plan, Minimum Age of Employees | 21 | |
| Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent | 4.00% | |
| Defined Contribution Plan, Cost | $ 873,000 | $ 743,000 |