Note 12 - Acquisition (Details Textual) - Torcatt Enterprises Limitada [Member] $ in Millions		12 Months Ended
Jan. 09, 2025 USD ($)	Dec. 31, 2025 USD ($)
Number of Vessels Owned	2
Payments to Acquire Businesses, Gross	$ 16.0
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill		$ 3.3
Increase (Decrease) in Value of Acquired Vessels		(12.1)
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent		1.7
Business Combination, Bargain Purchase, Gain Recognized, Amount		$ 1.1
Business Combination, Bargain Purchase, Gain, Statement of Income or Comprehensive Income [Extensible Enumeration]		Other Nonoperating Income (Expense)

The increase (decrease) in the value of the acquired vessels.

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Represents number of vessels owned.

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- Definition

In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity.

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Indicates line item in statement of income or comprehensive income that includes gain from bargain purchase in business combination.

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Amount of identifiable intangible asset acquired in business combination and recognized at acquisition date. Excludes goodwill and financial asset.

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Amount of asset acquired in business combination and recognized at acquisition date, classified as other and noncurrent.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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