v3.26.1
Note 20 - Subsequent Events (Details Textual)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Feb. 20, 2026
Jan. 16, 2026
USD ($)
$ / shares
shares
Oct. 16, 2025
USD ($)
shares
Aug. 19, 2025
USD ($)
shares
Oct. 29, 2021
shares
Feb. 28, 2026
USD ($)
shares
Jan. 31, 2026
USD ($)
$ / shares
shares
Dec. 31, 2025
USD ($)
$ / shares
shares
Mar. 16, 2026
USD ($)
shares
Dec. 31, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
USD ($)
$ / shares
shares
Mar. 12, 2026
shares
Jan. 20, 2026
USD ($)
$ / shares
Jun. 30, 2024
$ / shares
Dec. 31, 2023
$ / shares
Stockholders' Equity Note, Stock Split, Conversion Ratio                   35          
Proceeds from Warrant Exercises | $                   $ 852 $ 247        
Stock Issued In Connection with Exercise of Warrants, Shares (in shares) | shares                   22,681,197          
Common Stock, Par or Stated Value Per Share | $ / shares               $ 0.01   $ 0.01 $ 0.01        
Stock Issued In Connection with Exercise of Warrants, Value | $                   $ 852          
Proceeds from Issuance of Warrants | $                   $ 5,946 $ 0        
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares               $ 5.77   $ 5.77          
Common Stock, Shares Authorized (in shares) | shares               1,500,000,000   1,500,000,000 1,500,000,000        
Forecast [Member]                              
Common Stock, Shares Authorized (in shares) | shares                       5,000,000,000      
SKY Tokens [Member] | Forecast [Member]                              
Crypto Asset, Number of Units, Acquired                 1,100,000,000            
Crypto Asset, Fair Value | $                 $ 161,400            
Crypto Asset, Cost | $                 $ 70,700            
Crypto Asset, Number of Units                 2,100,000,000            
Series B Preferred Stock [Member]                              
Preferred Stock, Shares Outstanding (in shares) | shares               1,000   1,000 1,000        
Series F Preferred Stock [Member]                              
Stock Issued During Period, Shares, New Issues | shares       1,986,568                      
Stock Redeemed or Called During Period, Shares | shares     639,935                        
Stock Redeemed or Called During Period, Value | $     $ 175                        
Preferred Stock, Shares Outstanding (in shares) | shares               1,346,633   1,346,633          
Preferred Stock, Redemption Amount | $       $ 525       $ 350   $ 350          
The 2021 Private Placement Program [Member] | Series B Preferred Stock [Member]                              
Stock Issued During Period, Shares, New Issues | shares         15,000                    
Preferred Stock, Shares Outstanding (in shares) | shares               131   131 131        
At the Market Offering Agreement [Member] | Forecast [Member]                              
Proceeds from Issuance or Sale of Equity | $                 $ 13,500            
Stock Issued During Period, Shares, New Issues | shares                 1,300,000            
The December 2023 Warrants [Member]                              
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares               $ 43.75   $ 43.75         $ 43.75
June 2024 Warrant [Member]                              
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares               $ 12.85   $ 12.85       $ 12.85  
Unsecured Convertible Notes [Member] | Conversion of Unsecured Convertible Notes To Common Stock [Member]                              
Debt Conversion, Converted Instrument, Shares Issued | shares               14,286              
Subsequent Event [Member]                              
Common Stock, Par or Stated Value Per Share | $ / shares   $ 0.01                     $ 0.01    
Proceeds from Disposal, Crypto Asset | $             $ 51,000                
Subsequent Event [Member] | USDT Tokens [Member]                              
Crypto Asset, Number of Units, Acquired   35,000,000                          
Crypto Asset, Number of Units, Sold             35,000,000                
Subsequent Event [Member] | USDS Tokens [Member]                              
Crypto Asset, Number of Units, Acquired   16,000,000                          
Crypto Asset, Number of Units, Sold             16,000,000                
Subsequent Event [Member] | USDT and USDS Tokens [Member]                              
Crypto Asset, Fair Value | $   $ 51,000                          
Subsequent Event [Member] | SKY Tokens [Member]                              
Crypto Asset, Number of Units, Acquired   943,599,690                          
Crypto Asset, Fair Value | $   $ 61,400                          
Subsequent Event [Member] | Series B Preferred Stock [Member]                              
Preferred Stock, Convertible, Conversion Price (in dollars per share) | $ / shares             $ 43.75                
Subsequent Event [Member] | Series F Preferred Stock [Member]                              
Stock Redeemed or Called During Period, Shares | shares           639,935                  
Stock Redeemed or Called During Period, Value | $           $ 175                  
Preferred Stock, Shares Outstanding (in shares) | shares           710,270                  
Preferred Stock, Redemption Amount | $           $ 175                  
Subsequent Event [Member] | The 2021 Private Placement Program [Member] | Conversion of Series B Preferred Stock to Common Stock [Member]                              
Conversion of Stock, Shares Issued | shares             3,013                
Subsequent Event [Member] | January 2026 Private Placement [Member]                              
Proceeds from Issuance of Warrants | $   $ 25,000                          
Subsequent Event [Member] | At the Market Offering Agreement [Member]                              
Equity Issuable, Maximum Offering Price | $                         $ 100,000    
Comission, Percent                         2.00%    
Subsequent Event [Member] | The December 2023 Warrants [Member]                              
Stock Issued During Period, Shares, Warrants Exercised (in shares) | shares             5,341                
Proceeds from Warrant Exercises | $             $ 234                
Subsequent Event [Member] | June 2024 Warrant [Member]                              
Stock Issued During Period, Shares, Warrants Exercised (in shares) | shares             4,511                
Proceeds from Warrant Exercises | $             $ 58                
Subsequent Event [Member] | The January 2026 Warrants [Member]                              
Stock Issued In Connection with Exercise of Warrants, Shares (in shares) | shares   167,539,227                          
Stock Issued In Connection with Exercise of Warrants, Value | $   $ 137,400                          
Class of Warrant or Right, Purchase Price of Warrants or Rights | $ / shares   $ 0.85                          
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares   $ 0.05                          
Warrants Exercisable at Six Months, Percentage   20.00%                          
Warrants Exercisable at Ninth Months, Percentage   30.00%                          
Warrants Exercisable at Twelve Months, Percentage   50.00%                          
Subsequent Event [Member] | Unsecured Convertible Notes [Member] | Conversion of Unsecured Convertible Notes To Common Stock [Member]                              
Debt Conversion, Converted Instrument, Shares Issued | shares             7,143                
Subsequent Event [Member] | Reverse Stock Split [Member]                              
Stockholders' Equity Note, Stock Split, Conversion Ratio 5