Note 6 - Stockholders' Equity and Stock-based Compensation - Summary of Market-based Option Activity (Details) - Market-based Options [Member]	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Options balances, number of shares (in shares) | shares	0
Options balances, weighted average exercise price (in dollars per share) | $ / shares	$ 0
Options granted, number of shares (in shares) | shares	2,100,000
Options granted, weighted average exercise price (in dollars per share) | $ / shares	$ 6.78
Options exercised, number of shares (in shares) | shares	0
Options exercised, weighted average exercise price (in dollars per share) | $ / shares	$ 0
Options canceled, number of shares (in shares) | shares	0
Options canceled, weighted average exercise price (in dollars per share) | $ / shares	$ 0
Options expired, number of shares (in shares) | shares	0
Options expired, weighted average exercise price (in dollars per share) | $ / shares	$ 0
Options balances, number of shares (in shares) | shares	2,100,000
Options balances, weighted average exercise price (in dollars per share) | $ / shares	$ 6.78
Options balances, weighted average remaining life (Year)	9 years 5 months 8 days
Options exercisable, number of shares (in shares) | shares	0
Options exercisable, weighted average exercise price (in dollars per share) | $ / shares	$ 0