Note 6 - Long-term Debt (Details Textual) - Avenue Ventures Note Payable [Member] - USD ($) $ in Millions |
1 Months Ended | ||
|---|---|---|---|
Feb. 28, 2022 |
Sep. 30, 2022 |
Apr. 30, 2022 |
|
| Repayments of Notes Payable | $ 5.0 | ||
| Debt Instrument, Debt Default, Default Rate | 5.00% | ||
| Debt Instrument, Debt Default, Foreclosed Cash | $ 4.8 | ||
| Debt Instrument, Debt Default, Amount Foreclosed | $ 0.5 | ||
| Debt Instrument, Debt Default, Amount Applied To Principal | $ 3.8 |