v3.26.1
Note 7 - Convertible Notes with Warrants (Related Party) (Details Textual)
 3 Months Ended 6 Months Ended
Mar. 28, 2023
USD ($)
shares
Dec. 23, 2022
USD ($)
shares
Jun. 30, 2026
USD ($)
$ / shares
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
$ / shares
Jun. 30, 2025
USD ($)
Mar. 31, 2026
USD ($)
Dec. 31, 2025
USD ($)
Mar. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 16, 2022
USD ($)
Convertible Debt     $ 33,186,900   $ 33,186,900     $ 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            
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     $ 33,186,900 $ 23,764,700 $ 33,186,900 $ 23,764,700 $ 33,276,800 25,014,200 $ 20,174,100 $ 19,869,700  
Securities Purchase Agreement, Tranche One [Member]                      
Debt Instrument, Increase, Accrued Interest     77,152 70,139 153,457 139,506          
Interest Payable       929,815   929,815   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     12,267,749            
Convertible Debt     15,610,500 11,128,200 $ 15,610,500 11,128,200 15,629,200 11,745,700 9,415,800 9,269,900  
Securities Purchase Agreement, Tranche Two [Member]                      
Debt Instrument, Increase, Accrued Interest     88,767 80,697 168,843 153,494          
Interest Payable       977,118   977,118   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       13,752,944            
Convertible Debt     $ 17,576,400 $ 12,636,500 $ 17,576,400 $ 12,636,500 $ 17,647,600 $ 13,268,500 $ 10,758,300 $ 10,599,800  
KAHR Foundation [Member]                      
Subsidiary, Ownership Percentage, Noncontrolling Owner                     5.00%