Note 8 - Stock Options - Changes in Options (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Options outstanding (in shares)	3,850,000	0
Options outstanding, weighted average exercise price (in dollars per share)	$ 0.36	$ 0
Options outstanding, aggregate intrinsic value	$ 3,910,950	$ 3,363,000	$ 0
Granted, options (in shares)	1,465,000	3,850,000
Granted, weighted average exercise price (in dollars per share)	$ 0.86	$ 0.36
Granted, aggregate intrinsic value (in dollars per share)	$ 0	$ 0
Options outstanding (in shares)	5,315,000	3,850,000
Options outstanding, weighted average exercise price (in dollars per share)	$ 0.49	$ 0.36