Equity - Schedule of Authorized Shares of Common Stock for Future Issuance (Details) - shares	Jun. 30, 2020	Dec. 31, 2019
Class of Stock [Line Items]
Total (in shares)	27,757,227	40,169,185
Shares available for future stock incentive awards
Class of Stock [Line Items]
Total (in shares)	5,283,139	1,765,018
Unvested restricted stock units
Class of Stock [Line Items]
Total (in shares)	159,375	181,250
Outstanding common stock options
Class of Stock [Line Items]
Total (in shares)	7,473,613	6,796,669
Warrant
Class of Stock [Line Items]
Total (in shares)	14,841,100	31,426,248