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Note 7 - Affiliates Balances - Balances with Unconsolidated Affiliates (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Due from related parties | $ 21,191 | $ 70,134
Due to related parties | 21,191 | 61,555
Net due from affiliates | 0 | 8,579
Sonatide [Member] |  |
Due from related parties | 0 | 49,011
Due to related parties | 0 | 40,432
DTDW [Member] |  |
Due from related parties | 21,191 | 21,123
Due to related parties | $ 21,191 | $ 21,123

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