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Note 5 - Trade Accounts and Notes Receivable (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Mar. 31, 2020 | Jun. 30, 2023 | Sep. 30, 2022
Financing Receivable, after Allowance for Credit Loss |  | $ 2,108 | $ 8,225
Product [Member] |  |  |
Disposal Group, Including Discontinued Operation, Consideration | $ 12,500 |  |
Promissory Note for Sale of Product [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 10,000 |
Notes Receivable, Interest Rate, Stated Percentage | 7.00% |  |
Notes Receivable, Term (Year) | 3 years |  |
Notes Receivable, Periodic Payment | $ 300 |  |
Proceeds from Collection of Notes Receivable |  | 10,400 |
Financing Receivable, after Allowance for Credit Loss |  | $ 2,100 |

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- Definition Period of time between issuance and maturity of notes receivable, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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