Commitments and Contingencies - Summary of Restricted Stock Grants and Stock Option Grants (Details)	12 Months Ended
	Dec. 31, 2019 shares
Stock options
Vuong Trieu [Member] | Chief Executive Officer [Member]
Restricted stock	209,302
Stock options	313,953
Fatih Uckun [Member] | Chief Medical Officer [Member]
Restricted stock	186,047
Stock options	279,070
Chulho Park [Member] | Chief Technology Officer [Member]
Restricted stock	162,791
Stock options	244,186
Amit Shah [Member] | Chief Financial Officer [Member]
Restricted stock	148,837
Stock options	223,256