Note 14 - Stockholders' Equity and Stock-based Compensation - Summary of Stock Options (Details) - $ / shares	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Outstanding, shares, options (in shares)	2,074,505	2,074,505
Outstanding, weighted average exercise price (in dollars per share)	$ 8.51	$ 8.51
Outstanding, options, weighted average grant date fair value (in dollars per share)	$ 2.11	$ 2.11	$ 2.11
Outstanding, weighted average remaining contractual term (Year)	6 years 9 months 18 days	7 years 10 months 24 days	8 years 10 months 24 days
Granted, shares, options (in shares)	0	0
Granted, weighted average exercise price (in dollars per share)	$ 0	$ 0
Granted, options, weighted average grant date fair value (in dollars per share)		$ 0
Outstanding, shares, options (in shares)	2,074,505	2,074,505	2,074,505
Outstanding, weighted average exercise price (in dollars per share)	$ 8.51	$ 8.51	$ 8.51
Options vested and exercisable, shares, options (in shares)	1,816,336
Options vested and exercisable, weighted average exercise price (in dollars per share)	$ 8.86
Options vested and exercisable, options, weighted average grant date fair value (in dollars per share)	$ 2.14
Options vested and exercisable, weighted average remaining contractual term (Year)	6 years 9 months 18 days