Note 11 - Net Loss Per Share - Schedule of Antidilutive Shares Excluded from Computation of Net Loss Per Share (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Employee and Non-employee Stock Options [Member]
Antidilutive Securities (in shares)	4,859,271	3,643,513	4,859,271	3,643,513
Warrant [Member]
Antidilutive Securities (in shares)	0	205,000	0	205,000
Deferred Share Units [Member]
Antidilutive Securities (in shares)	284,886	213,905	284,886	213,905
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities (in shares)	11,828	8,578	11,828	8,578