Note 5 - Stockholders' Equity, Options, and Warrants - Restricted Stock Units Activity (Details) - Restricted Stock Units (RSUs) [Member]	6 Months Ended
	Jun. 30, 2024 $ / shares shares
Outstanding, number (in shares)	7,000,000
Outstanding, weighted average grant date fair value (in dollars per share) | $ / shares	$ 0.04
Granted, number (in shares)	0
Vested and Exercised (in shares)	(1,750,000)
Vested and Exercised (in dollars per share) | $ / shares	$ 0.04
Forfeited / Cancelled, number (in shares)	0
Outstanding, number (in shares)	5,250,000
Outstanding, weighted average grant date fair value (in dollars per share) | $ / shares	$ 0.04