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Note 9 - Debt (Details Textual) $ in Thousands, € in Millions | Jul. 05, 2023 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2023 EUR (€) | Jul. 03, 2023 USD ($) | Dec. 31, 2022 USD ($) | Nov. 16, 2021 USD ($)
--- | --- | --- | --- | --- | --- | ---
Restricted Cash, Current |  | $ 4,973 |  |  |  | $ 1,241 |  |
Long-Term Debt, Gross |  | 761,844 |  |  |  | 175,000 |  |
Long-Term Debt, Current Maturities |  | 102,369 |  |  |  | $ 0 |  |
Revolving Credit Facility [Member] |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  | $ 25,000
Long-term Line of Credit, Total |  | 0 |  |  |  |  |  |
Unsecured Debt [Member] |  |  |  |  |  |  |  |
Long-Term Debt, Fair Value |  | $ 263,300 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 10.375% | 10.375% |  | 10.375% |  | 10.375% |  |
Long-Term Debt, Gross | $ 243,100 | $ 250,000 | [1] |  |  | $ 0 | [1] |
Debt Instrument, Face Amount |  |  |  |  | $ 250,000 |  |  |
Debt Instrument, Covenant, Free Liquidity Test, Amount | $ 20,000 |  |  |  |  |  |  |
Debt Instrument, Covenant, Free Liquidity Test, Percentage | 10.00% |  |  |  |  |  |  |
Debt Instrument, Covenant, Minimum Equity Ratio | 30.00% |  |  |  |  |  |  |
Secured Debt [Member] |  |  |  |  |  |  |  |
Long-Term Debt, Gross | $ 318,300 | 325,000 | [2] |  |  | 0 | [2] |
Debt Instrument, Face Amount | 325,000 |  |  |  |  |  |  |
Debt Instrument, Covenant, Free Liquidity Test, Amount | $ 20,000 |  |  |  |  |  |  |
Debt Instrument, Covenant, Free Liquidity Test, Percentage | 10.00% |  |  |  |  |  |  |
Debt Instrument, Covenant, Minimum Equity Ratio | 30.00% |  |  |  |  |  |  |
Nordic Bond [Member] |  |  |  |  |  |  |  |
Long-Term Debt, Fair Value |  | 185,300 |  |  |  | 177,300 |  |
Supplier Facility Agreements [Member] |  |  |  |  |  |  |  |
Long-Term Debt, Gross |  | $ 11,800 |  | € 11.2 |  | $ 0 |  |
Supplier Facility Agreements [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 2.70% |  | 2.70% |  |  |  |
Supplier Facility Agreements [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 6.00% |  | 6.00% |  |  |  |
Tranche A Term Loan [Member] | Secured Debt [Member] |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ 100,000 |  |  |  |  |  |  |
Long-Term Debt, Current Maturities | 50,000 |  |  |  |  |  |  |
Long-Term Line of Credit, Noncurrent | $ 50,000 |  |  |  |  |  |  |
Tranche A Term Loan [Member] | Secured Debt [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 5.00% |  |  |  |  |  |  |
Tranche A Term Loan [Member] | Secured Debt [Member] | Maximum [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 8.00% |  |  |  |  |  |  |
Tranche B Term Loan [Member] | Secured Debt [Member] |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ 225,000 |  |  |  |  |  |  |
Debt Instrument, Term (Year) | 3 years |  |  |  |  |  |  |
Tranche B Term Loan [Member] | Secured Debt [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 3.75% |  |  |  |  |  |  |
[1] | As of September 30, 2023, the fair value (Level 2) of the 10.375% Senior Unsecured Notes due July 2028 was $263.3 million.
[2] | As of September 30, 2023, the fair value of the Senior Secured Term Loan approximates book value.

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-4 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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