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Note 8 - Assets Held for Sale, Asset Sales and Asset Impairments (Details Textual) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019
Number of Vessels, Held for Sale, Addition |  |  | 3 | 7 | 32 | 46
Number of Vessels, Held for Sale, Sold |  |  |  |  | 53 |
Number of Vessels, Transfer from Held for Sale to Active Fleet |  |  | 1 | 3 | 2 |
Number of Vessels, Held for Sale |  | 23 | 8 | 18 | 23 |
Number of Active Vessels Sold |  |  |  | 10 | 3 |
Number of Vessels Sold |  |  | 12 | 9 |  |
Proceeds from Sale of Productive Assets, Total |  |  | $ 13,568 | $ 34,010 | $ 38,296 |
Proceeds from Sale of Vessels and Other Assets |  |  | 13,600 | 34,000 | 38,300 |
Impairment of Long-Lived Assets to be Disposed of |  |  |  | 13,700 | 75,200 |
Impairment Charge Recaptured |  |  | 500 | 1,700 | 1,000 |
Asset Impairment Charges, Total |  |  | 714 | 15,643 | 74,109 |
Expense Recovered on contract to Shipyard |  | $ 4,000 |  |  |  |
Vessel, Obsolete Inventory [Member] |  |  |  |  |  |
Asset Impairment Charges, Total |  |  | $ 1,214 | $ 1,905 | $ 2,959 |
Third-party Operator, Family Member of Director [Member] |  |  |  |  |  |
Proceeds from Sale of Productive Assets, Total | $ 11,400 |  |  |  |  |
Gain (Loss) on Sale of Assets and Asset Impairment Charges | $ 4,300 |  |  |  |  |

X
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- Definition Amount of impairment charge recaptured during period. + References No definition available. + Details
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- Definition The number of active vessels sold. + References No definition available. + Details
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