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Note 12 - Acquisition (Details Textual) $ in Thousands | Jan. 09, 2025 USD ($) | Jul. 31, 2024 USD ($) shares | Jun. 30, 2025 USD ($) | Dec. 31, 2024 USD ($)
--- | --- | --- | --- | ---
Goodwill |  |  | $ 59,198 | $ 59,031
Torcatt Enterprises Limitada [Member] |  |  |  |
Number of Vessels Owned | 2 |  |  |
Payments to Acquire Businesses, Gross | $ 16,000 |  |  |
Business Combination, Acquisition-Related Cost, Expense | $ 200 |  |  |
Wineland-Thomson Adventures, Inc [Member] |  |  |  |
Payments to Acquire Businesses, Gross |  | $ 24,000 |  |
Business Combination, Acquisition-Related Cost, Expense |  | 2,700 |  |
Business Combination, Consideration Transferred |  | 30,000 |  |
Business Combination, Consideration Transferred, Equity Interest |  | $ 6,000 |  |
Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number of Shares (in shares) | shares |  | 682,593 |  |
Goodwill |  |  |  | 17,000
Wineland-Thomson Adventures, Inc [Member] | Tradenames and Customer Relationships [Member] |  |  |  |
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill |  |  |  | $ 8,600

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