Note 11 - Equity Incentive Plan - Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Outstanding, shares (in shares)	1,812,729
Outstanding, Weighted Average Exercise (in dollars per share)	$ 33.42
Outstanding, aggregate intrinsic value	$ 248	$ 127
Granted, shares (in shares)	541,100
Granted, Weighted Average Exercise Price (in dollars per share)	$ 28.13
Exercised, shares (in shares)	(3,556)
Exercised, Weighted Average Exercise Price (in dollars per share)	$ 21.96
Exercised, Aggregate Intrinsic Value	$ 14
Forfeited and canceled, shares (in shares)	(127,008)
Forfeited and canceled (in dollars per share)	$ 37.5
Forfeited and canceled, aggregate intrinsic value	$ 30
Outstanding, shares (in shares)	2,223,265
Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 31.92
Outstanding, Weighted Average Remaining Contractual Term (Year)	7 years 6 months
Vested, shares (in shares)	1,276,640
Vested, Weighted Average Exercise Price (in dollars per share)	$ 34.57
Vested, Weighted Average Remaining Contractual Term (Year)	6 years 6 months
Vested, Aggregate Intrinsic Value	$ 102
Vested and expected to vest, shares (in shares)	2,223,265
Vested and expected to vest, Weighted Average Exercise Price (in dollars per share)	$ 31.92
Vested and expected to vest, Weighted Average Remaining Contractual Term (Year)	7 years 6 months
Vested and expected to vest, Aggregate Intrinsic Value	$ 248