Note 11 - Net Loss Per Share Attributable to Common Stockholders

12 Months Ended

Dec. 31, 2022

Notes to Financial Statements

Earnings Per Share [Text Block]

The following table (in thousands, except for loss per share) reconciles basic and diluted weighted average common shares outstanding for the years ended December 31, 2022 and 2021:

	Year Ended
	December 31,
	2022			2021
Weighted average common shares outstanding:
Basic		130,136			119,201
Dilutive unvested stock, convertible preferred stock, Common Stock Warrants and IPO Warrants		—			—
Diluted		130,136			119,201
Basic and diluted net loss per share attributable to common stockholders	$	(0.65	)	$	(0.34	)

Potentially dilutive securities that were not included in the diluted net loss per share computations because their effect would have been anti-dilutive were as follows (in thousands):

	Year Ended
	December 31,
	2022		2021
Unvested stock (1)		1,904		1,662
Convertible preferred stock		46,533		30,754
Common Stock Warrants		1,382		2,207
IPO Warrants(2)		—		12,082
Total potentially dilutive common shares		49,819		46,705

⁽¹⁾ Does not include 9.4 million shares and 8.3 million shares of unvested restricted stock and restricted stock units for the years ended  December 31, 2022 and 2021 because the performance conditions had not yet been satisfied as of  December 31, 2022 and 2021, respectively.

⁽²⁾ The IPO Warrants were issued in connection with our initial public offering in 2015 and expired July 24, 2022.