v3.26.3
Note 7 - Convertible Notes with Warrants (Related Party) (Details Textual)
3 Months Ended 9 Months Ended
Mar. 28, 2023
USD ($)
$ / shares
shares
Dec. 23, 2022
USD ($)
$ / shares
shares
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
Jun. 30, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 16, 2022
USD ($)
Convertible Debt               $ 25,014,200      
Convertible Debt, Noncurrent     $ 0   $ 0     13,268,500      
SPA Warrants [Member]                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares 1,043,699 907,141                  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares $ 0.2563 $ 0.2563                  
Warrants and Rights Outstanding, Term (Year) 5 years 5 years                  
Convertible Debt     29,107,200   29,107,200            
Adjustments to Additional Paid in Capital, Warrant Issued $ 541,200 $ 127,900                  
Securities Purchase Agreement [Member]                      
Debt Instrument, Face Amount                     $ 5,000,000
Proceeds from Convertible Debt $ 2,675,000 $ 2,325,000                  
Debt Instrument, Interest Rate, Stated Percentage   10.00%                  
Debt Instrument, Convertible, Conversion Price of Principal   0.2691                  
Debt Instrument, Convertible, Conversion Price of Accrued and Unpaid Interest   0.2563                  
Debt Instrument, Percent of Outstanding Balance Payable on Change-in-control                     125.00%
Convertible Debt     29,107,200   29,107,200   $ 33,186,900        
Securities Purchase Agreement, Tranche One [Member]                      
Debt Instrument, Increase, Accrued Interest     78,000 $ 70,909 231,457 $ 210,416          
Interest Payable     1,007,815   1,007,815     776,358      
Long-Term Debt, Gross     2,325,000   $ 2,325,000     2,325,000      
Debt Instrument, Convertible, Number of Equity Instruments   12,849,949     12,572,080            
Convertible Debt       22,246,600   22,246,600     $ 23,764,700    
Securities Purchase Agreement, Tranche Two [Member]                      
Debt Instrument, Increase, Accrued Interest     89,742 81,584 $ 258,585 235,078          
Interest Payable     1,066,860   1,066,860     808,275      
Long-Term Debt, Gross     2,675,000   $ 2,675,000     2,675,000      
Debt Instrument, Convertible, Number of Equity Instruments 14,784,350       14,103,089            
Convertible Debt     $ 29,107,200 $ 22,246,600 $ 29,107,200 $ 22,246,600   $ 25,014,200   $ 19,869,700  
KAHR Foundation [Member]                      
Subsidiary, Ownership Percentage, Noncontrolling Owner                     5.00%