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Note 8 - Long-term Debt (Details Textual) $ in Thousands |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jan. 05, 2023 USD ($) | May 19, 2022 USD ($) | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023 USD ($) | Sep. 30, 2023 | Mar. 31, 2023 | Jun. 30, 2021 | Jun. 30, 2024 | Dec. 31, 2024 USD ($) T | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Jul. 11, 2023 USD ($) | Jun. 13, 2019 USD ($)
Long-Term Debt |  |  |  |  |  |  |  |  |  | $ 147,526 |  |  |  |  |
Repayments of Long-Term Debt |  |  |  |  |  |  |  |  |  | 42,000 | $ 18,437 | $ 11,250 |  |  |
Interest Expense, Debt |  |  |  |  |  |  |  |  |  | 198 | 476 |  |  |  |
Bailment Pool Chassis Inventories, Net |  |  |  |  | $ 20,293 |  |  |  |  | 17,489 | 20,293 |  |  |  |
Floor Plan Obligations |  |  |  |  | 2,217 |  |  |  |  | 2,612 | 2,217 |  |  |  |
Interest Rate Swap Effective May 31, 2019 Through May 31, 2024 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Liability, Notional Amount |  |  |  |  |  |  |  |  |  | $ 175,000 |  |  |  |  | $ 175,000
Derivative, Fixed Interest Rate |  |  |  |  |  |  |  |  |  | 2.424% |  |  |  |  |
Interest Rate Swap [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Counter Party Risk Number of Financial Institutions |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), after Adjustments, Tax |  |  |  |  |  |  |  |  |  | $ (485) | (1,163) |  |  |  |
Interest Expense, Debt |  |  |  |  |  |  |  |  |  | 198 | 476 |  |  |  |
Derivative, Notional Amount |  | $ 125,000 |  |  |  |  |  |  |  | $ 125,000 |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Flow Rate, Percentage |  | 2.718% |  |  |  |  |  |  |  | 2.718% |  |  |  |  |
Interest Rate Derivative Liabilities, at Fair Value |  |  |  |  | 4,033 |  |  |  |  | $ 2,340 | 4,033 |  |  |  |
Derivative Liability |  |  |  |  | 2,984 |  |  |  |  | $ 1,732 | 2,984 |  |  |  |
Steel Hedging Instrument [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass (US Ton) | T |  |  |  |  |  |  |  |  |  | 3,000 |  |  |  |  |
Derivative, Fixed Payments |  |  |  |  |  |  |  |  |  | $ 819 |  |  |  |  |
Derivative Liability |  |  |  |  |  |  |  |  |  | 54 |  |  |  |  |
Secured Debt [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount, Total |  |  |  |  | 274 |  |  |  |  | 162 | 274 |  |  |  |
Long-Term Debt |  |  |  |  | 189,413 |  |  |  |  | 147,526 | 189,413 |  |  |  |
Bailment Pool Arrangement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest Expense, Debt |  |  |  |  |  |  |  |  |  | $ 630 | 344 |  |  |  |
Prime Rate [Member] | Bailment Pool Arrangement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  |  |  |  |  |  |  |  | 7.50% |  |  |  |  |
Minimum [Member] | Prime Rate [Member] | Bailment Pool Arrangement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  |  |  |  |  | 0.00% |  |  |  |  |
Maximum [Member] | Prime Rate [Member] | Bailment Pool Arrangement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  |  |  |  |  | 8.00% |  |  |  |  |
Prepaid Expenses and Other Current Assets [Member] | Interest Rate Swap [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest Rate Derivative Liabilities, at Fair Value |  |  |  |  | 3,174 |  |  |  |  | $ 1,712 | 3,174 |  |  |  |
Other Noncurrent Assets [Member] | Interest Rate Swap [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest Rate Derivative Liabilities, at Fair Value |  |  |  |  | $ 859 |  |  |  |  | 628 | 859 |  |  |  |
Credit Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Issuance Costs, Net |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,409 |  |
Debt Instrument Covenant Leverage Ratio | 3.50% |  | 3.50% | 4.00% | 4.25% | 3.50% | 4.00% |  | 4.00% |  |  |  |  |  |
Debt Instrument, Unamortized Discount, Total |  |  |  |  |  |  |  |  |  |  |  |  | 563 |  |
Write off of Deferred Debt Issuance Cost |  |  |  |  |  |  |  |  |  |  |  |  | 972 |  |
Write off of Unamortized Debt Discount |  |  |  |  |  |  |  |  |  |  |  |  | 3,964 |  |
Gain (Loss) on Extinguishment of Debt, Total |  |  |  |  |  |  |  |  |  |  |  |  | $ 4,936 |  |
Repayments of Long-Term Debt |  |  |  |  |  |  |  |  |  | 42,000 | 10,000 |  |  |  |
Debt Instrument, Covenant Consolidated Interest Coverage Ratio |  |  |  |  |  |  |  | 3.00% |  |  |  |  |  |  |
Credit Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility Increase in Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  | 175,000 |  |  |  |  |
Credit Agreement [Member] | Asset Pledged as Collateral [Member] | Cash Surrender Value of Corporate Owned Life Insurance Policies [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000 |
Credit Agreement [Member] | Asset Pledged as Collateral [Member] | Corporate Owned Life Insurance Policies [Member] | Other Noncurrent Liabilities [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Secured Debt |  |  |  |  | $ 750 |  |  |  |  | 546 | 750 |  |  |  |
Senior Secured Term Loan Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  | $ 225,000 |  |  |  |  |
Senior Secured Term Loan Facility [Member] | Secured Overnight Financing Rate (SOFR) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  |  |  |  |  | 0.10% |  |  |  |  |
Senior Secured Term Loan Facility [Member] | Minimum [Member] | Leverage Ratio One [Member] | Secured Overnight Financing Rate (SOFR) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  |  |  |  |  | 1.375% |  |  |  |  |
Senior Secured Term Loan Facility [Member] | Maximum [Member] | Leverage Ratio One [Member] | Secured Overnight Financing Rate (SOFR) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  |  |  |  |  | 2.00% |  |  |  |  |
Swingline Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  | $ 15,000 |  |  |  |  |
Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility Increase in Maximum Borrowing Capacity | $ 50,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | 150,000 |  |  |  |  |  |  |  |  | 150,000 |  |  |  |  |
Debt Issuance Costs, Net | $ 334 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-Term Debt |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  |  |  |  |  |  |  | $ 149,450 |  |  |  |  |
Revolving Credit Facility [Member] | New York Federal Reserve Bank NYFRB [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  |  |  |  |  | 0.50% |  |  |  |  |
Revolving Credit Facility [Member] | One Month Adjusted Term SOFR Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  |  |  |  |  | 0.10% |  |  |  |  |
Revolving Credit Facility [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage |  |  |  |  |  |  |  |  |  | 0.15% |  |  |  |  |
Revolving Credit Facility [Member] | Minimum [Member] | Leverage Ratio Two [Member] | Secured Overnight Financing Rate (SOFR) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  |  |  |  |  | 0.375% |  |  |  |  |
Revolving Credit Facility [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage |  |  |  |  |  |  |  |  |  | 0.30% |  |  |  |  |
Revolving Credit Facility [Member] | Maximum [Member] | Leverage Ratio Two [Member] | Secured Overnight Financing Rate (SOFR) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  |  |  |  |  | 1.00% |  |  |  |  |
Letter of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  | $ 10,000 |  |  |  |  |
Line of Credit [Member] | Floor Plan Arrangement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  | 5,000 |  |  |  |  |
Interest Expense, Debt |  |  |  |  |  |  |  |  |  | 1,011 | 734 |  |  |  |
Floor Plan Obligations |  |  |  |  | $ 2,217 |  |  |  |  | $ 2,612 | $ 2,217 |  |  |  |
Line of Credit [Member] | Secured Overnight Financing Rate (SOFR) [Member] | Floor Plan Arrangement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  |  |  |  |  | 1.75% |  |  |  |  |

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