Note 11 - Net Loss Per Share - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Net loss	$ (26,960)	$ (20,606)
Weighted average common shares outstanding used to compute net loss per share, basic and diluted (in shares)	126,624	116,950
Net loss per share of common stock, basic and diluted: (in dollars per share)	$ (0.21)	$ (0.18)