Note 11 - Properties and Equipment, Accrued Expenses, Other Current Liabilities and Other Liabilities (Details Textual) $ in Thousands |
3 Months Ended | 6 Months Ended | 12 Months Ended | |
|---|---|---|---|---|
Mar. 31, 2026 |
Jun. 30, 2026
USD ($)
|
Jun. 30, 2025
USD ($)
|
Dec. 31, 2025
USD ($)
|
|
| Number of Vessels | 204 | 208 | ||
| Number of Vessels Under Finance Leases | 2 | |||
| Number of Vessels Purchased | 2 | |||
| Proceeds from Sale of Productive Assets | $ 14,856 | $ 11,084 | ||
| Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property | $ 3,204 | $ 8,018 | ||
| Bareboat Charter Agreement [Member] | ||||
| Finance Lease, Right-of-Use Asset, after Accumulated Amortization | $ 24,400 | |||
| Vessel [Member] | ||||
| Number of Vessels Sold | 4 | 6 | ||
| Proceeds from Sale of Productive Assets | $ 14,900 | $ 11,100 | ||
| Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property | $ 3,200 | $ 8,000 | ||