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CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)
Dec. 31, 2021
Apr. 20, 2021
Feb. 08, 2021
Dec. 31, 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%