Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Stock Option Activities) (Details)

v3.21.1
Stockholders' Equity (Stock Option Activities) (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Options vested and expected to vest, Number of shares 1,053,490  
Number of shares, Forfeited (25,000)  
Options vested and expected to vest, Number of shares 1,028,490 1,053,490
Options vested and expected to vest, Weighted average exercise price $ 5.02  
Weighted average exercise price, Forfeited 4.88  
Options vested and expected to vest, Weighted average exercise price $ 5.02 $ 5.02
Total weighted average intrinsic value, Options vested and expected to vest $ 647,482  
Total weighted average intrinsic value, Options vested and expected to vest $ 807,138 $ 647,482
Options vested and expected to vest, Weighted average contractual life 2 years 4 months 24 days 2 years 7 months 17 days