Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Summary of Stock Option Activity (Details)

v3.22.1
Stock-Based Compensation - Summary of Stock Option Activity (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Number of Shares    
Balance at the beginning (in shares) 35,405,000  
Granted (in shares) 0  
Exercised (in shares) 0  
Cancelled (in shares) (215,000)  
Forfeited (in shares) (825,000)  
Balance at the ending (in shares) 34,365,000 35,405,000
Exercisable (in shares) 11,331,250  
Exercisable, Vested and expected to vest (in shares) 34,365,000  
Weighted Average Exercise Price    
Balance outstanding (in dollars per share) $ 0.07 $ 0.07
Granted (in dollars per share) 0  
Exercised (in dollars per share) 0  
Cancelled (in dollars per share) 0.07  
Forfeited (in dollars per share) 0.10  
Exercisable (in dollars per share) 0.08  
Exercisable, Vested and expected to vest (in dollars per share) $ 0.07  
Weighted Average Remaining Contractual Term (Years)    
Weighted average remaining contractual term 8 years 9 months 25 days 9 years 29 days
Weighted average remaining contractual term, exercisable 8 years 9 months 25 days  
Weighted average remaining contractual term, vested and expected to vest 8 years 9 months 25 days  
Aggregate Intrinsic Value $ 0 $ 134,750
Aggregate Intrinsic Value, Exercisable 0  
Aggregate Intrinsic Value, Exercisable, Vested and expected to vest $ 0