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Note 7 - Current Debt (Details Textual) - Interim Funding AgreementIFA [Member] $ in Millions |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Nov. 02, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2023 USD ($) | Aug. 02, 2022 USD ($)
Debt Instrument, Face Amount |  |  |  | $ 10.8
Short-Term Debt |  | $ 10.8 | $ 10.8 |
Debt, Weighted Average Interest Rate |  | 5.87% | 7.08% |
Maximum Senior Leverage Ratio | 3 |  |  |
Debt Instrument, Covenant, Minimum EBITDA | $ 35.0 |  |  |
Secured Overnight Financing Rate (SOFR) [Member] |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 2.00% | 1.75% |  |

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