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Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Statement Of Income And Comprehensive Income [Abstract]        
Net loss $ (3,993,685) $ (4,486,404) $ (12,271,269) $ (17,187,281)
Other comprehensive (loss) income:        
Foreign currency translation adjustment (22,282) (81,602) 124,366 (145,617)
Unrealized gain (loss) on securities, net of taxes as applicable 27 (2,210) 2,384 (3,443)
Other comprehensive (loss) income (22,255) (83,812) 126,750 (149,060)
Comprehensive loss $ (4,015,940) $ (4,570,216) $ (12,144,519) $ (17,336,341)