Note 8 - Long-term Debt - Amortization of Financing Costs (Details) $ in Thousands	Sep. 30, 2023 USD ($)
2024, Amortization	$ 50
Amortization of Financing Costs, Year 2	50
Amortization of Financing Costs, Year 3	51
Amortization of Financing Costs, Year 4	50
Amortization of Financing Costs, Year 5	$ 23