v3.26.1
Note 6 - Stockholders' Equity and Equity-linked Instruments - Schedule of Dividends (Details) - USD ($)
 3 Months Ended 6 Months Ended
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2025
Dividend Shares (in shares)       7,945
Fair Value Shares Issued [1]       $ 101,000
Series A-5 Preferred Stock [Member]        
Dividend Shares (in shares)     54  
Fair Value Shares Issued [1]     $ 1,000  
Series AAAA Junior Convertible Preferred Stock [Member]        
Dividend Shares (in shares) 34,575      
Fair Value Shares Issued [1] $ 253,000      
Series A A Preferred Stock [Member]        
Dividend Shares (in shares)   6,359    
Fair Value Shares Issued [1]   $ 89,000    
Series AA-3 Convertible Preferred Stock [Member]        
Dividend Shares (in shares)   66    
Fair Value Shares Issued [1]   $ 1,000    
Series AA-4 Convertible Preferred Stock [Member]        
Dividend Shares (in shares)   1,348    
Fair Value Shares Issued [1]   $ 9,000    
Series AA-5 Convertible Preferred Stock [Member]        
Dividend Shares (in shares)   118    
Fair Value Shares Issued [1]   $ 1,000    
[1] Fair valued based on the closing price of the Company’s common stock on the respective common stock dividend payment date.