Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2020

Schedule of Preferred Stock and the Accretion Of Dividend Activity

The following tables summarize Series B convertible preferred stock and the accretion of dividend activity for the three months ended March 31, 2020 (in thousands):

	Tranche 1		Tranche 2		Total
Series B Convertible Preferred Stock
Balance as of December 31, 2019	$	13,230	$	8,645	$	21,875
Cumulative dividends on Series B convertible preferred stock		165		105		270
Balance as of March 31, 2020	$	13,395	$	8,750	$	22,145

Number of Common Shares Issuable Upon Conversion
Balance as of December 31, 2019		3,308		2,161		5,469
Cumulative dividends on Series B convertible preferred stock		41		26		67
Balance as of March 31, 2020		3,349		2,187		5,536

Summary of Outstanding Warrants Issued by Company

Below is the summary of outstanding warrants issued by the Company as of March 31, 2020:

Warrant Type

Number of Shares

Issuable Upon

Exercise

Weighted

Average

Exercise Price

Issue Date

Expiration Date

East West Bank Warrant

40,000

3.64

February 8, 2017

February 8, 2022

Schedule of Common Stock Reserved for Future Issuance

Common Stock Reserved for Future Issuance

Common stock reserved for future issuance as of March 31, 2020 was as follows:

Exercise of outstanding stock options, vesting of restricted stock units ("RSU"), and issuance of RSUs vested but not released			1,835,402
ESPP			293,888
Shares of common stock available for grant under the 2011 Plan			412,744
Warrants to purchase common stock			40,000
Shares of common stock issuable upon conversion of Series B convertible preferred stock			7,541,449
Total			10,123,483