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Note 7 - Syndicated Revolver (Details Textual) $ in Millions |  |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Sep. 08, 2025 USD ($) | Sep. 22, 2023 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Jun. 29, 2024
Bank of Montreal [Member] | The 2023 Credit Facility [Member] |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | $ 240.0 |  |  |  |  |
Line of Credit Facility, Increasing Capacity, Total Funded Debt to Adjusted EBITDA Ratio Benchmark |  | 3.75 |  |  |  |  |
Debt Instrument, Fee Amount | $ 0.4 | $ 0.9 |  |  |  |  |
Legal Fees |  | $ 0.3 |  |  |  |  |
Debt Instrument, Extension, Term (Year) | 1 year |  |  |  |  |  |
Maximum Total Funded Debt to EBITDA Ratio |  |  |  |  |  |  | 3.75
Minimum Fixed Charge Coverage Ratio |  | 3 |  |  |  |  |
Debt Instrument, Required Principal Payment |  | $ 190.4 |  |  |  |  |
Amortization of Debt Issuance Costs |  |  | $ 0.1 | $ 0.4 | $ 0.1 | $ 0.4 |
Bank of Montreal [Member] | The 2023 Credit Facility [Member] | Maximum [Member] |  |  |  |  |  |  |
Line of Credit Facility, Additional Borrowing Capacity Available Through New Commitment |  | $ 60.0 |  |  |  |  |
Royal Bank, Bank of Montreal, Bank of Nova Scotia, HSBC and CIBC [Member] | Guaranteed Credit Facility [Member] |  |  |  |  |  |  |
Repayments of Debt |  |  | $ 2.5 | $ 2.5 | $ 5.0 | $ 14.5 |

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