Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Stock Option Activities) (Details)

v3.23.1
Stockholders' Equity (Stock Option Activities) (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2023
Dec. 31, 2022
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Options vested and expected to vest, Number of shares 2,650,990  
Number of shares, Forfeited (2,500)  
Number of shares, Expired (45,000)  
Options vested and expected to vest, Number of shares 2,603,490 2,650,990
Options vested and exercisable, Number of shares 603,490  
Options vested and expected to vest, Weighted average exercise price $ 1.47  
Weighted average exercise price, Forfeited 2.50  
Weighted average exercise price, Expired 7.42  
Options vested and expected to vest, Weighted average exercise price 1.37 $ 1.47
Options vested and exercisable, Weighted average exercise price $ 4.11  
Total weighted average intrinsic value, Options vested and expected to vest $ 230,000  
Total weighted average intrinsic value, Options vested and expected to vest $ 560,000 $ 230,000
Options vested and expected to vest, Weighted average contractual life 5 years 5 months 26 days 5 years 7 months 20 days
Options Granted, weighted average remaining contractual life (years) 5 years 6 months  
Options vested and exercisable, Weighted average remaining contractual life (years) 1 year 4 months 20 days