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Note 5 - Property and Equipment (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Depreciation, Total | $ 49,800 | $ 60,400
Gain (Loss) on Disposition of Property Plant Equipment, Total | 3,799 | 7,706
Finance Lease, Right-of-Use Asset, before Accumulated Amortization | 45,500 | 50,200
Finance Lease, Right-of-Use Asset, Accumulated Amortization | 22,300 | 20,800
Finance Lease, Right-of-Use Asset, Amortization | $ 3,620 | $ 4,080
Revenue Equipment [Member] | Minimum [Member] |  |
Capital Leases of Lessee, Term of Contract (Month) | 48 months | 48 months
Revenue Equipment [Member] | Maximum [Member] |  |
Capital Leases of Lessee, Term of Contract (Month) | 84 months | 84 months
Net in Depreciation and Amortization Expense [Member] |  |
Gain (Loss) on Disposition of Property Plant Equipment, Total |  | $ 7,700

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