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Note 7 - Long-term Debt - Long-term Debt (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Sep. 30, 2023
--- | --- | ---
Total debt | $ 646 | $ 700
Debt Instruments, Excluding Paycheck Protection Program Liability [Member] |  |
Total debt | 646 | 702
Less: current portion | (213) | (267)
Long-term debt, net of current portion | 433 | 435
Debt Instruments, Excluding Paycheck Protection Program Liability [Member] | Term Loans, Two [Member] |  |
Total debt | 381 | 385
Debt Instruments, Excluding Paycheck Protection Program Liability [Member] | Seller Note [Member] |  |
Total debt | $ 265 | $ 317

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