Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2019

Equity [Abstract]

Common Stock Reserved for Future Issuance

As of June 30, 2019, the Company has shares of common stock reserved for future issuance for as follows (in thousands):

	June 30, 2019
Warrants outstanding	142,739
Stock options outstanding	1,281
Options reserved for future issuance under the Company’s 2017 Equity Incentive Plan	416
Shares reserved for future issuance under the Employee Stock Purchase Plan	265
Restricted stock units	13
Total common stock reserved for future issuance	144,714