Note 9 - Share-based Compensation - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Exercised, number of options (in shares)	75,283	87,378	23,581
Shares of common stock for the exercise of stock options (in shares)	75,283	87,378	23,581
Performance based Stock Options [Member]
Beginning balance, outstanding, number of options (in shares)	0
Beginning balance, outstanding, weighted average exercise price (in dollars per share)	$ 0
Granted, number of options (in shares)	404,833
Granted, weighted average exercise price (in dollars per share)	$ 39.54
Exercised, number of options (in shares)	0
Shares of common stock for the exercise of stock options (in shares)	0
Exercised, weighted average exercise price (in dollars per share)	$ 0
Forfeited, number of options (in shares)	0
Forfeited, weighted average exercise price (in dollars per share)	$ 0
Ending balance, outstanding, number of options (in shares)	404,833	0
Ending balance, outstanding, weighted average exercise price (in dollars per share)	$ 39.54	$ 0
Outstanding, weighted average remaining contractual term (Year)	5 years 18 days
Outstanding, number (in shares)	404,833	0
Outstanding, aggregate intrinsic value	$ 0
Outstanding, weighted average exercise price (in dollars per share)	$ 39.54	$ 0
Exercisable, number of options (in shares)	0
Exercisable, weighted average exercise price (in dollars per share)	$ 0
Exercisable, number (in shares)	0
Exercisable, aggregate intrinsic value	$ 0
Exercisable, weighted average exercise price (in dollars per share)	$ 0
Service based Stock Options [Member]
Beginning balance, outstanding, number of options (in shares)	569,168
Beginning balance, outstanding, weighted average exercise price (in dollars per share)	$ 35.72
Granted, number of options (in shares)	54,530	96,359	127,227
Granted, weighted average exercise price (in dollars per share)	$ 29.76
Exercised, number of options (in shares)	75,283
Shares of common stock for the exercise of stock options (in shares)	75,283
Exercised, weighted average exercise price (in dollars per share)	$ 23.27
Forfeited, number of options (in shares)	56,805
Expired, number (in shares)	21,289
Forfeited, weighted average exercise price (in dollars per share)	$ 43.83
Expired, weighted average exercise price (in dollars per share)	$ 50.32
Ending balance, outstanding, number of options (in shares)	470,321	569,168
Ending balance, outstanding, weighted average exercise price (in dollars per share)	$ 35.38	$ 35.72
Outstanding, weighted average remaining contractual term (Year)	5 years 5 months 15 days
Outstanding, number (in shares)	470,321	569,168
Outstanding, aggregate intrinsic value	$ 146
Outstanding, weighted average exercise price (in dollars per share)	$ 35.38	$ 35.72
Exercisable, number of options (in shares)	322,711
Exercisable, weighted average exercise price (in dollars per share)	$ 33.45
Exercisable, number (in shares)	322,711
Exercisable, aggregate intrinsic value	$ 146
Exercisable, weighted average exercise price (in dollars per share)	$ 33.45
Exercisable, weighted average remaining contractual terms (Year)	4 years 5 months 12 days