CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (DEFICIT) (Parenthetical)	Sep. 30, 2021	Apr. 20, 2021	Feb. 08, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
10% Warrants
Interest rate (as a percent)	10.00%	10.00%	10.00%	10.00%
15% Warrants
Interest rate (as a percent)	15.00%				15.00%	15.00%	15.00%	15.00%