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Condensed Consolidated Statements of Stockholders' Equity - USD ($)
Total
Preferred stock
Common stock
Additional paid-in capital
Accumulated deficit
Accumulated other comprehensive loss
Beginning balance (in shares) at Dec. 31, 2022   9 21,090,938 [1]      
Beginning balance at Dec. 31, 2022 $ 222,362,756 $ 0 $ 21,090 [1] $ 1,710,888,191 $ (1,487,847,784) $ (698,741)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Issuance of common stock for cash, net of financing costs (in shares) [1]     760,083      
Issuance of common stock for cash, net of financing costs 14,000,000   $ 760 [1] 13,999,240    
Vesting of RSUs, net of tax payments (in shares) [1]     43,901      
Vesting of RSUs, net of tax payments (424,704)   $ 44 [1] (424,748)    
Stock-based compensation 3,809,003     3,809,003    
Net loss (40,649,317)       (40,649,317)  
Unrealized (loss) gain on short-term investments, net of tax 117,862         117,862
Foreign currency translation (1,918)         (1,918)
Ending balance at Mar. 31, 2023 199,213,682 $ 0 $ 21,894 [1] 1,728,271,686 (1,528,497,101) (582,797)
Ending balance (in shares) at Mar. 31, 2023   9 21,894,922 [1]      
Beginning balance (in shares) at Dec. 31, 2023   9 22,793,075 [1]      
Beginning balance at Dec. 31, 2023 117,349,129 $ 0 $ 22,792 [1] 1,740,954,074 (1,622,965,136) (662,601)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Issuance of common stock for cash, net of financing costs (in shares) [1]     543,620      
Issuance of common stock for cash, net of financing costs 5,225,133   $ 544 [1] 5,224,589    
Vesting of RSUs, net of tax payments (in shares) [1]     34,558      
Vesting of RSUs, net of tax payments (174,248)   $ 34 [1] (174,282)    
Stock-based compensation 2,525,433     2,525,433    
Net loss (30,469,871)       (30,469,871)  
Unrealized (loss) gain on short-term investments, net of tax (46,016)         (46,016)
Foreign currency translation 32,403         32,403
Ending balance at Mar. 31, 2024 $ 94,441,963 $ 0 $ 23,370 [1] $ 1,748,529,814 $ (1,653,435,007) $ (676,214)
Ending balance (in shares) at Mar. 31, 2024   9 23,371,253 [1]      
[1] All share amounts in this column, including appropriate reclassifications between common stock and additional paid-in capital, have been restated to reflect the 1-for-12 reverse stock split effected in January 2024 on a retroactive basis for all periods presented.