License and Services Agreement - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended			6 Months Ended
	Nov. 30, 2017	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
License And Services Agreement [Line Items]
Proceeds from capital contribution			$ 11,500,000
VX3 License Agreement
License And Services Agreement [Line Items]
Research and development, milestone payments to company	$ 32,000,000
Terms of license agreement upon termination					the Company will issue to VX3 or its designees the number of shares of the Company’s common stock equal to the lesser of (1) the aggregate of all payments made to VX3 by its partners divided by $18.20 and (2) the then fair market value of VX3 divided by the then fair market value of one share of the Company’s common stock.
Base amount to determine issuance of common stock upon termination	$ 18.20
VX3
License And Services Agreement [Line Items]
Percentage of voting interest					90.00%
Proceeds from capital contribution		$ 0		$ 0	$ 0	$ 0