Note 10 - Net Loss Per Share

3 Months Ended

Mar. 31, 2020

Notes to Financial Statements

Earnings Per Share [Text Block]

Note 

10

 — Net Loss Per Share

The following table (in thousands, except for loss per share) reconciles basic and diluted weighted average common shares outstanding for each of the

three

months ended

March 31, 2020

and

2019

:

	Three Months Ended
	March 31,
	2020			2019
Weighted average common shares outstanding:
Basic		117,353			106,940
Dilutive unvested stock, convertible preferred stock, Common Stock Warrants and IPO Warrants		—			—
Diluted		117,353			106,940
Basic and diluted net loss per share attributable to common stockholders	$	(0.02	)	$	(0.16	)

Potentially dilutive securities

not

included in the diluted net loss per share computations because their effect would have been anti-dilutive were as follows (in thousands):

	Three Months Ended
	March 31,
	2020		2019
Unvested stock (1)		1,160		490
Convertible preferred stock		15,905		11,127
Common Stock Warrants		1,964		1,376
IPO Warrants (2)		12,082		12,082
Total potentially dilutive common shares		31,111		25,075

( 1 ) Does not include 2.8 million shares and 10.8 million shares for the three months ended March 31, 2020 and 2019 , respectively, of unvested stock because the performance conditions had not yet been satisfied.

( 2 ) The IPO Warrants were issued in connection with our initial public offering in 2015. The IPO Warrants are exercisable at a price of $11.50 per share and expire on July 24, 2022. The Company may redeem the IPO Warrants at a price of $0.01 per IPO Warrant upon 30 days’ notice only if the last sale price of our common stock is at least $17.50 per share for any 20 trading days within a 30 -trading day period. If the Company redeems the IPO Warrants in this manner, the Company will have the option to do so on a cashless basis with the issuance of an economically equivalent number of shares of Company common stock.