Consolidated Statements of Convertible Preferred Stock and Stockholders’ Deficit (Parenthetical) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Series B convertible preferred stock
Convertible preferred stock issuance costs			$ 47,047
Series C convertible preferred stock
Convertible preferred stock issuance costs	$ 53,509	$ 3,278,302