Note 5 - Stock-based Compensation - Summary of Restricted Stock Units (Details) - Restricted Stock Units (RSUs) [Member]	6 Months Ended
	Jun. 30, 2025 $ / shares shares
Balance (in shares) | shares	479,998
Balance (in dollars per share) | $ / shares	$ 12.59
Canceled and forefeited (in shares) | shares	(2,925)
Canceled and forefeited (in dollars per share) | $ / shares	$ 12.82
Balance (in shares) | shares	477,073
Balance (in dollars per share) | $ / shares	$ 12.58