Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2020	Dec. 31, 2019
Class A common stock
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	650,000,000	650,000,000
Common stock, shares issued	29,977,408	22,035,976
Common stock, shares outstanding	29,977,408	22,035,976
Class B common stock
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	6,715,441	5,934,191
Common stock, shares outstanding	6,715,441	5,934,191