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Note 5 - Long-term Debt (Details Textual) € in Millions, $ in Millions |  | 3 Months Ended |  |
--- | --- | --- | --- | ---
Feb. 04, 2022 USD ($) | Mar. 31, 2024 USD ($) | Mar. 31, 2023 USD ($) | Mar. 31, 2024 EUR (€) | May 02, 2023 USD ($)
Amortization of Debt Issuance Costs |  | $ 0.9 | $ 0.7 |  |
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%
State Assistance Loan [Member] | DuVine [Member] |  |  |  |  |
Debt Instrument, Face Amount | € |  |  |  | € 0.1 |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 0.53% |

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