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Note 16 - Subsequent Events (Details Textual)
$ in Thousands
 1 Months Ended 3 Months Ended
May 14, 2026
USD ($)
shares
Mar. 31, 2026
USD ($)
shares
Dec. 31, 2025
Crypto Asset, Number of Units   2,153,141,678 0
SKY Tokens [Member]      
Crypto Asset, Cost   $ 137,412  
Crypto Asset, Number of Units   2,153,141,678  
Subsequent Event [Member] | SKY Tokens [Member]      
Crypto Asset, Number of Units, Acquired 86,500,000    
Crypto Asset, Cost $ 6,500    
Crypto Asset, Number of Units 2,260,000,000    
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  
Proceeds from Issuance or Sale of Equity, Net   13,400  
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    
Proceeds from Issuance or Sale of Equity, Net 628    
Common Stock Available for Issuance $ 85,700