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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' (DEFICIT) EQUITY (Parenthetical)
Mar. 31, 2021
Feb. 08, 2021
Dec. 31, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
12% Warrants            
Interest rate (as a percent)     12.00%     12.00%
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%