Note 13 - Income Taxes - Deferred Tax Assets Expiration With Respect to Net Operating Losses (Details) - Domestic Tax Authority [Member] $ in Thousands |
12 Months Ended |
|---|---|
|
Jun. 30, 2022
USD ($)
| |
| Various U.S. state net operating losses, expiring between 2025 and 2040 | $ 340 |
| Net Operating Loss Carryforwards | $ 3,953 |