CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Private Placement \| Pre-Funded Warrant
Issuance costs	$ 401
Common Stock \| Incyte
Issuance costs			$ 100
Common Stock \| Convertible Preferred Stock
Conversion ratio of series A stock into common stock		1000.00%
Common Stock \| At The Market
Issuance costs	$ 411		107
Common Stock \| Follow On Offering
Issuance costs		$ 4,600	$ 3,300
Series A Convertible Preferred Stock
Issuance costs		$ 400