Annual report pursuant to Section 13 and 15(d)

Note 11 - Related Party Transactions (Details Textual)

v3.22.4
Note 11 - Related Party Transactions (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Director [Member]    
Common Stock, Percentage of Beneficial Stock Outstanding 5.00%  
BHS [Member] | Royalty Agreement and License [Member]    
Royalty Expense $ 51,000 $ 60,000
Related Party Transaction, Automatic Renewal Period of Agreement (Year) 1 year  
Number of Days Termination Notice (Day) 90 days