Note 2 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands		3 Months Ended
Feb. 20, 2026	Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)
Long-Lived Asset, Held and Used, Impairment Loss		$ 0	$ 589
Tangible Asset Impairment Charges			30
Operating Lease, Impairment Loss			$ 559
Stockholders' Equity Note, Stock Split, Conversion Ratio		5
Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	5	5
SKY Tokens [Member]
Crypto Asset, Percent of Total Supply		9.00%
SKY Tokens [Member] \| Product Concentration Risk [Member] \| Assets, Total [Member]
Concentration Risk, Percentage		89.00%

Percentage of total supply of crypto asset.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of impairment loss for long-lived asset held and used. Includes, but is not limited to, impairment loss for long-lived asset to be disposed of other than by sale.

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Amount of loss from impairment of right-of-use asset from operating lease.

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

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