Note 6 - Stockholders' Equity and Stock-based Compensation - Summary of Time-based Option Activity (Details) - Time-based Options [Member]	6 Months Ended	12 Months Ended
	Jun. 30, 2025 $ / shares shares	Dec. 31, 2024 $ / shares shares
Options balances, number of shares (in shares) | shares	8,075,265
Options balances, weighted average exercise price (in dollars per share) | $ / shares	$ 10.49
Options balances, weighted average remaining life (Year)	6 years 8 months 19 days	6 years 8 months 19 days
Options granted, number of shares (in shares) | shares	1,200,400
Options granted, weighted average exercise price (in dollars per share) | $ / shares	$ 19
Options exercised, number of shares (in shares) | shares	(54,750)
Options exercised, weighted average exercise price (in dollars per share) | $ / shares	$ 7.16
Options canceled, number of shares (in shares) | shares	(46,000)
Options canceled, weighted average exercise price (in dollars per share) | $ / shares	$ 15.1
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	9,174,915	8,075,265
Options balances, weighted average exercise price (in dollars per share) | $ / shares	$ 11.6	$ 10.49
Options exercisable, number of shares (in shares) | shares	4,550,614
Options exercisable, weighted average exercise price (in dollars per share) | $ / shares	$ 13.3
Options exercisable, weighted average remaining life (Year)	4 years 9 months 14 days