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Note 1 - Organization (Details Textual) $ in Thousands			1 Months Ended	3 Months Ended
	Feb. 20, 2026	Jan. 16, 2026 USD ($) shares	May 14, 2026 USD ($) shares	Mar. 31, 2026 USD ($) shares	Mar. 31, 2025 USD ($)	Dec. 31, 2025
Stock Issued In Connection with Exercise of Warrants, Value					$ 614
Proceeds from Issuance of Warrants				$ 25,001	0
Digital Assets Received in Exchange for Pre-Funded Warrants				$ 109,031	$ 0
Crypto Asset, Number of Units				2,153,141,678		0
Number of Reportable Segments				1
Number of Operating Segments				1
Stockholders' Equity Note, Stock Split, Conversion Ratio				5
Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	5			5
SKY Tokens and Stablecoins [Member]
Digital Assets Received in Exchange for Pre-Funded Warrants		$ 109,000
SKY Tokens [Member]
Crypto Asset, Number of Units				2,153,141,678
Crypto Asset, Percent of Total Supply				9.00%
Crypto Asset, Cost				$ 137,412
SKY Tokens [Member] | Subsequent Event [Member]
Crypto Asset, Number of Units			2,260,000,000
Crypto Asset, Number of Units, Acquired			86,500,000
Crypto Asset, Cost			$ 6,500
January 2026 Private Placement [Member]
Proceeds from Issuance of Warrants		$ 25,000
At the Market Offering Agreement [Member]
Stock Issued During Period, Shares, New Issues | shares				1,434,919
Proceeds from Issuance or Sale of Equity				$ 13,700
Common Stock Available for Issuance				$ 86,300
At the Market Offering Agreement [Member] | Subsequent Event [Member]
Stock Issued During Period, Shares, New Issues | shares			398,367
Proceeds from Issuance or Sale of Equity			$ 638
Common Stock Available for Issuance			$ 85,700
The January 2026 Warrants [Member]
Stock Issued In Connection with Exercise of Warrants, Shares | shares		167,539,227
Stock Issued In Connection with Exercise of Warrants, Value		$ 134,000

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