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Note 5 - Long-term Debt (Details Textual) - USD ($) $ in Millions |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Feb. 04, 2022 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | May 02, 2023
Amortization of Debt Issuance Costs |  | $ 0.9 | $ 0.9 | $ 1.8 | $ 1.9 |
Senior Secured Notes [Member] |  |  |  |  |  |
Debt Instrument, Face Amount | $ 360.0 |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 6.75% |  |  |  |  |
Credit Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 45.0 |  |  |  |  |
Line of Credit Facility, Commitment Fee Percentage | 0.50% |  |  |  |  |
Credit Agreement [Member] | Letter of Credit [Member] |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 5.0 |  |  |  |  |
The 9.00% Note [Member] |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  | $ 275.0
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 9.00%

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