Note 5 - Common Stock - Summary of Stock Option Activity (Details)	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Granted (in shares) | shares	134,145
Granted (in dollars per share) | $ / shares	$ 2.86
Outstanding at December 31, 2023 (in shares) | shares	134,145
Outstanding at December 31, 2023 (in dollars per share) | $ / shares	$ 2.86