Quarterly report pursuant to Section 13 or 15(d)

Share-based compensation - Underwriters Warrants (Details)

v3.22.2.2
Share-based compensation - Underwriters Warrants (Details) - USD ($)
 9 Months Ended 12 Months Ended
Sep. 19, 2022
Sep. 30, 2022
Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Warrants to purchase shares 500,000   172,500
Warrants exercise price $ 0.625   $ 12.50
Percentage of warrants exercisable     100.00%
Remaining contractual term 5 years    
Aggregate grant date fair value $ 178,462    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]      
Discount rates 3.69%    
Expected life 5 years    
Expected volatility 96.46%    
Expected dividends $ 0    
Share price $ 0.50    
Number of Shares      
Warrants outstanding at the beginning of the period   172,500  
Warrants granted   500,000  
Warrants outstanding at the end of the period   672,500 172,500
Exercisable at December 31, 2021   172,500  
Weighted Average Exercise Price      
Outstanding at the beginning of the period   $ 12.50  
Granted   0.63  
Outstanding at the end of the period   3.67 $ 12.50
Exercisable at December 31, 2021   $ 12.50  
Remaining term   4 years 6 months 6 days 3 years 11 months 12 days
Exercisable contractual term   3 years 2 months 17 days  
Intrinsic value of warrants outstanding   $ 0  
Warrants      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]      
Unrecognized compensation expense   $ 0