Note 15 - Basic and Diluted Net Loss Per Share - Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share (in shares)	47,601,356	17,089,534
Share-Based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share (in shares)	10,444,679	7,584,967
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share (in shares)	12,326,177	8,483,491
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share (in shares)	24,830,500	1,021,076