Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Accounting for Stock-Based Compensation (Details)

v3.21.2
Stockholders' Equity - Accounting for Stock-Based Compensation (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Stockholders' Equity        
Stock-based compensation $ 900,000 $ 4,700,000 $ 4,376,588 $ 6,050,094
Compensation expenses capitalized $ 0 $ 0 $ 0 $ 0
Employee stock options        
Stockholders' Equity        
Vesting period     4 years  
Term of award     P10Y P10Y
Employee stock options | Maximum        
Stockholders' Equity        
Term of award     P10Y