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Note 5 - Long-term Debt (Details Textual) € in Millions, $ in Millions		3 Months Ended
	Feb. 04, 2022 USD ($)	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Mar. 31, 2025 EUR (€)	May 02, 2023 USD ($)
Amortization of Debt Issuance Costs		$ 0.9	$ 0.9
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%
State Assistance Loan [Member] \| DuVine [Member]
Debt Instrument, Face Amount \| €				€ 0.1
Debt Instrument, Interest Rate, Stated Percentage				0.53%