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Note 3 - Acquisition of Swire Pacific Offshore Holdings Ltd - Provisional Amounts for Acquired Assets and Liabilities (Details) - Swire Pacific Offshore Holdings Ltd. [Member] - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 | Apr. 22, 2022
--- | --- | --- | ---
Assets |  |  |  |
Cash |  |  | $ 33,152 |
Trade and other receivables |  |  | 64,621 |
Marine operating supplies |  |  | 5,122 |
Assets held for sale |  |  | 2,500 |
Prepaid expenses and other current assets |  |  | 4,174 |
Net properties and equipment |  |  | 174,415 |
Indemnification assets | $ 22,678 | $ 28,369 | 32,279 | [1]
Other assets |  |  | 1,153 |
Total assets |  |  | 317,416 |
Accounts payable |  |  | 1,594 |
Accrued expenses |  |  | 54,924 |
Other current liabilities |  |  | 28,511 |
Other liabilities |  |  | 16,886 |
Total liabilities |  |  | 101,915 |
Net assets acquired |  |  | $ 215,501 |
[1] | Consists primarily of tax liabilities existing at the Closing Date that are recorded in other current liabilities and other liabilities.

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