Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Stock Warrants - Summary of Stock Warrants (Details)

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Note 8 - Stock Warrants - Summary of Stock Warrants (Details) - Warrants [Member] - $ / shares
 3 Months Ended 6 Months Ended 12 Months Ended
Mar. 31, 2022
Jun. 30, 2022
Dec. 31, 2021
Balance, shares (in shares) 2,550,000 2,550,000 2,000,000
Balance, weighted average price (in dollars per share) $ 1.03 $ 1.03 $ 1.05
Balance, weighted average fair value (in dollars per share) 0.007 $ 0.007 $ 0.003
Issued, shares (in shares)   0 550,000
Issued, weighted average price (in dollars per share)   $ 0 $ 0.95
Issued, weighted average fair value (in dollars per share) $ 0   $ 0.023
Exercised, shares (in shares)   0 0
Exercised, weighted average price (in dollars per share)   $ 0 $ 0
Cancelled, shares (in shares)   0 0
Cancelled, weighted average price (in dollars per share)   $ 0 $ 0
Expired, shares (in shares)   0 0
Expired, weighted average price (in dollars per share)   $ 0 $ 0
Balance, shares (in shares)   2,550,000 2,550,000
Balance, weighted average price (in dollars per share)   $ 1.03 $ 1.03
Balance, weighted average fair value (in dollars per share)   $ 0.007 $ 0.007
Exercisable, shares (in shares)   2,168,750  
Exercisable, weighted average price (in dollars per share)   $ 1.04  
Exercisable, weighted average fair value (in dollars per share)   $ 0.004