v3.26.1
Note 12 - Stockholders' Equity (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended
May 13, 2026
May 06, 2026
Apr. 24, 2026
Mar. 13, 2026
Sep. 03, 2025
May 06, 2025
Mar. 13, 2025
Mar. 31, 2026
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
May 30, 2025
Conversion of Series B Preferred Stock into Common Stock [Member]                        
Conversion of Stock, Shares Converted (in shares)         3.5              
Series B Preferred Stock Holders [Member]                        
Stock Issued During Period, Shares, New Issues (in shares)               22,176,525        
Common Stock, Shares Held In Abeyance (in shares)       13,294,267                
Sale of Common Stock as a Dividend [Member]                        
Stock Issued During Period, Shares, New Issues (in shares)             7,117,463          
Stock Issued During Period, Value, New Issues             $ 9,100          
Series B Stock Offering and Exchange [Member]                        
Stock Issued During Period, Shares, New Issues (in shares)       7,094,159                
Stock Issued During Period, Value, New Issues       $ 9,700                
Series B-1 Preferred Stock Offering [Member]                        
Stock Issued During Period, Shares, New Issues (in shares)           2,803,960            
Stock Issued During Period, Value, New Issues           $ 3,500            
Series B-1 Preferred Stock Offering [Member] | Subsequent Event [Member]                        
Stock Issued During Period, Shares, New Issues (in shares)   742,534                    
Stock Issued During Period, Value, New Issues   $ 800                    
Series B-1 Preferred Stock Holders [Member] | Subsequent Event [Member]                        
Stock Issued During Period, Shares, New Issues (in shares)   3,712,663                    
Registered Direct Offering [Member]                        
Stock Issued During Period, Value, New Issues                   $ 14,934    
Proceeds from Issuance of Common Stock                 $ 0 14,934    
Registered Direct Offering [Member] | Subsequent Event [Member]                        
Stock Issued During Period, Shares, New Issues (in shares)     18,000,000                  
Shares Issued, Price Per Share (in dollars per share)     $ 1                  
Payments of Stock Issuance Costs     $ 1,200                  
Proceeds from Issuance of Common Stock     $ 16,800                  
At-the-market Offering [Member]                        
Stock Issued During Period, Shares, New Issues (in shares)                 4,161,747      
Stock Issued During Period, Value, New Issues                 $ 5,274      
Payments of Stock Issuance Costs                 200      
Proceeds from Issuance of Common Stock                 $ 5,274 $ 0    
Equity Sale Commitment, Maximum                       $ 25,000
Percent Commission               3.00% 3.00%      
Series B Preferred Stock [Member]                        
Preferred Stock, Shares Issued (in shares)               0 0   44,140  
Percent of Dividends Receivable             20.00%          
Preferred Stock, Shares Outstanding (in shares)       0       0 0   44,140  
Abeyance Shares [Member]                        
Stock Issued During Period, Value, New Issues                 $ 0      
Common Stock, Shares Held In Abeyance (in shares)               13,294,267 13,294,267      
Abeyance Shares [Member] | Subsequent Event [Member]                        
Stock Issued During Period, Shares, New Issues (in shares) 3,358,162                      
Abeyance Shares [Member] | Series B-1 Preferred Stock Offering [Member] | Subsequent Event [Member]                        
Common Stock, Shares Held In Abeyance (in shares)   2,061,428                    
Common Stock, Value, Held in Abeyance   $ 2,200                    
Abeyance Shares [Member] | Series B-1 Preferred Stock Holders [Member] | Subsequent Event [Member]                        
Common Stock, Shares Held In Abeyance (in shares)   10,307,139                    
Series B-1 Preferred Stock [Member]                        
Preferred Stock, Shares Issued (in shares)               10,134 10,134   10,134  
Percent of Dividends Receivable           20.00%            
Preferred Stock, Shares Outstanding (in shares)               10,134 10,134      
Series B-1 Preferred Stock [Member] | Subsequent Event [Member]                        
Preferred Stock, Shares Outstanding (in shares)   0