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Note 10 - Equity Method Investment (Details Textual) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024
Proceeds from Sale of Property, Plant, and Equipment				$ 30,651	$ 32,332
Income (Loss) from Equity Method Investments	$ 3,578	$ 3,993		11,622	$ 11,763
Transport Enterprise Leasing LLC [Member] | Revenue Equipment [Member]
Note Payable Assumed From Sale of Equipment			$ 26,200	$ 8,400
Proceeds from Sale of Property, Plant, and Equipment			$ 500
Transport Enterprise Leasing LLC [Member]
Equity Method Investment, Ownership Percentage	49.00%			49.00%
Income (Loss) from Equity Method Investments				$ 11,600

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Amount of note payable assumed from sale of equipment.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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