Note 11 - Stock-based Compensation Plan - Stock Option Activity (Details)	9 Months Ended
	Sep. 30, 2024 $ / shares shares
Options outstanding, number of shares (in shares) | shares	505,006
Options outstanding, weighted average exercise price (in dollars per share) | $ / shares	$ 10.46
Granted, number of shares (in shares) | shares	165,364
Granted, weighted average exercise price (in dollars per share) | $ / shares	$ 11.33
Exercised, number of shares (in shares) | shares	(30,080)
Exercised, weighted average exercise price (in dollars per share) | $ / shares	$ 5.41
Canceled, number of shares (in shares) | shares	(36,240)
Canceled, weighted average exercise price (in dollars per share) | $ / shares	$ 8.57
Options outstanding, number of shares (in shares) | shares	604,050
Options outstanding, weighted average exercise price (in dollars per share) | $ / shares	$ 10.93