Common Stock Warrants (Tables)

9 Months Ended

Sep. 30, 2019

Warrants And Rights Note Disclosure [Abstract]

Schedule of Common Stock Warrants Issued and Outstanding

As of September 30, 2019, the Company had the following common stock warrants issued and outstanding (in thousands, except share and per share data):

Warrant Class	Shares		Issuance Date	Price per Share		Expiration Date
Common stock warrant		50,716	February 2014	$	0.1700	February 2021
Common stock warrant (1)		84,000	June 2017	$	13.2000	June 2020
		134,716

(1) This warrant was issued to the Company’s lead underwriter in connection with the Company’s initial public offering.