v3.26.1
Note 11 - Stockholders' Deficit (Details Textual)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
Oct. 16, 2025
USD ($)
shares
Aug. 19, 2025
USD ($)
shares
Oct. 29, 2021
shares
Feb. 28, 2026
USD ($)
shares
Sep. 30, 2025
$ / shares
Sep. 29, 2025
USD ($)
Mar. 12, 2026
shares
Jan. 31, 2026
$ / shares
Dec. 31, 2025
USD ($)
$ / shares
shares
Oct. 31, 2025
Dec. 31, 2024
shares
Jan. 29, 2024
$ / shares
Common Stock, Shares Authorized (in shares)                 1,500,000,000   1,500,000,000  
Preferred Stock, Shares Authorized (in shares)                 5,000,000   5,000,000  
Preferred Stock, Convertible, Shares Issuable                 1,000      
Voting Equivalent   2.12                    
Common Stock, Dividends, Per Share, Declared (in dollars per share) | $ / shares         $ 4              
Payments of Ordinary Dividends, Common Stock | $           $ 4,800            
2025 Preferred Stock Purchase Agreement [Member]                        
Preferred Stock, Convertible, Shares Issuable 8,600,000                      
Series B Preferred Stock [Member]                        
Preferred Stock, Shares Outstanding (in shares)                 1,000   1,000  
Series B Preferred Stock [Member] | Subsequent Event [Member]                        
Preferred Stock, Convertible, Conversion Price (in dollars per share) | $ / shares               $ 43.75        
Series B Preferred Stock [Member] | The 2021 Private Placement Program [Member]                        
Stock Issued During Period, Shares, New Issues     15,000                  
Preferred Stock, Shares Outstanding (in shares)                 131   131  
Series B Preferred Stock, Post-split [Member]                        
Preferred Stock, Convertible, Conversion Price (in dollars per share) | $ / shares                       $ 43.75
Series B Preferred Stock, Post-split [Member] | The 2021 Private Placement Program [Member]                        
Preferred Stock, Convertible, Shares Issuable                 3,013      
Preferred Stock, Convertible, Conversion Price (in dollars per share) | $ / shares                 $ 43.75      
Series D Preferred Stock [Member]                        
Preferred Stock, Shares Outstanding (in shares)                 0      
Series D Preferred Stock [Member] | 2025 Preferred Stock Purchase Agreement [Member]                        
Stock Issued During Period, Shares, New Issues   481,250                    
Preferred Stock, Convertible, Shares Issuable   15,400,000                    
Series E Preferred Stock [Member]                        
Stock Issued During Period, Shares, New Issues 268,750                      
Preferred Stock, Shares Outstanding (in shares)                 0      
Series E Preferred Stock [Member] | 2025 Preferred Stock Purchase Agreement [Member]                        
Stock Issued During Period, Shares, New Issues   268,750                    
Preferred Stock, Convertible, Shares Issuable   8,600,000                    
Preferred Stock, Convertible, Conversion Ratio 32                 32    
Series F Preferred Stock [Member]                        
Stock Issued During Period, Shares, New Issues   1,986,568                    
Preferred Stock, Shares Outstanding (in shares)                 1,346,633      
Preferred Stock, Redemption Amount | $   $ 525             $ 350      
Stock Redeemed or Called During Period, Shares 639,935                      
Stock Redeemed or Called During Period, Value | $ $ 175                      
Series F Preferred Stock [Member] | Subsequent Event [Member]                        
Preferred Stock, Shares Outstanding (in shares)       710,270                
Preferred Stock, Redemption Amount | $       $ 175                
Stock Redeemed or Called During Period, Shares       639,935                
Stock Redeemed or Called During Period, Value | $       $ 175                
Forecast [Member]                        
Common Stock, Shares Authorized (in shares)             5,000,000,000