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Note 11 - Equity Method Investment - TEL's Summarized Financial Information (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Operating lease obligations	$ 10,612	$ 11,950
Transport Enterprise Leasing LLC [Member]
Operating lease obligations	6,651	4,100
Transport Enterprise Leasing LLC [Member] | Driver Advances and Other Receivable [Member]
Accounts receivable from TEL	127	37
Transport Enterprise Leasing LLC [Member] | Accrued Expenses [Member]
Accounts payable to TEL	0	460
Transport Enterprise Leasing LLC [Member] | Other Assets [Member]
Investment in TEL	$ 74,108	$ 66,327

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Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

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