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Going Concern and Summary of Significant Accounting Policies - Anti-dilutive weighted average diluted common shares (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Going Concern and Summary of Significant Accounting Policies        
Total potentially dilutive shares     13,686,875 11,125,705
Numerator:        
Net loss attributable to common stockholders $ (6,215,860) $ (7,239,100) $ (11,955,226) $ (14,578,765)
Denominator (weighted average quantities):        
Common shares issued 38,064,215 31,669,431 37,724,083 31,089,811
Add: Prefunded warrants   1,870,130   671,594
Add: Undelivered vested restricted shares 29,611 105,306 29,611 75,177
Denominator for basic net loss per share 38,093,826 33,644,867 37,753,694 31,836,582
Denominator for diluted net loss per share 38,093,826 33,644,867 37,753,694 31,836,582
Basic net loss per share of common stock $ (0.16) $ (0.22) $ (0.32) $ (0.46)
Diluted net loss per share of common stock $ (0.16) $ (0.22) $ (0.32) $ (0.46)
Options        
Going Concern and Summary of Significant Accounting Policies        
Total potentially dilutive shares     5,185,078 4,926,750
Warrants        
Going Concern and Summary of Significant Accounting Policies        
Total potentially dilutive shares     6,087,845 6,087,845
Convertible notes        
Going Concern and Summary of Significant Accounting Policies        
Total potentially dilutive shares     2,327,747 0
Restricted stock units        
Going Concern and Summary of Significant Accounting Policies        
Total potentially dilutive shares     86,205 111,110