Quarterly report [Sections 13 or 15(d)]

Note 6 - Stockholders' Equity and Equity-linked Instruments - Schedule of Dividends (Details)

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Note 6 - Stockholders' Equity and Equity-linked Instruments - Schedule of Dividends (Details) - USD ($)
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Series A-5 Preferred Stock [Member]    
Dividend Shares (in shares)   5
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  
[1] Fair valued based on the closing price of the Company’s common stock on the respective common stock dividend payment date.