Note 7 - Long-term Debt - Future Maturities of Long-term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Sep. 30, 2023
2024 (remaining)	$ 193
2025	213
2026	80
2027	80
2028	80
Total long-term debt	$ 646	$ 700

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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