Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Schedule of summary of stock option activity (Details)

v3.21.1
Stock-Based Compensation - Schedule of summary of stock option activity (Details) - Stock options - $ / shares
3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Number of Shares    
Vested and expected to vest (in shares) 21,650,000  
Weighted Average Exercise Price    
Vested and expected to vest (in dollars per share) $ 0.06  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]    
Weighted average remaining contractual term (years), vested and expected to vest 9 years 3 months 7 days  
Omnibus Incentive Plan 2014    
Number of Shares    
Balance at the beginning (in shares) 22,050,000  
Granted (in shares) 0  
Cancelled (in shares) (360,000)  
Forfeited (in shares) (40,000)  
Balance at the ending (in shares) 21,650,000 22,050,000
Exercisable (in shares) 5,705,000  
Weighted Average Exercise Price    
Balance at the beginning (in dollars per share) $ 0.06  
Granted (in dollars per share) 0  
Cancelled (in dollars per share) 0.05  
Forfeited (in dollars per share) 0.05  
Balance at the ending (in dollars per share) 0.06 $ 0.06
Exercisable (in dollars per share) $ 0.11  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]    
Weighted average remaining contractual term (years) 9 years 3 months 7 days 9 years 6 months 7 days
Weighted average remaining contractual term (years), exercisable 8 years 11 months 1 day