XML 55 R45.htm IDEA: XBRL DOCUMENT v3.22.0.1
Schedule of warrant activity (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Feb. 27, 2020
Net Investment Income [Line Items]      
Balance at ending 3,779,243 445,252  
Balance at ending $ 5.89 $ 15.39  
Granted 3,787,991  
Granted $ 4.97  
Cancelled/Forfeited   (454,000)  
Cancelled/Forfeited   $ 7.50  
Balance at ending 3,779,243 3,779,243  
Balance at ending $ 5.89 $ 5.89  
Balance at ending 3 years    
Exercisable at ending 3,779,243    
Exercisable at ending $ 5.89    
Exercisable at ending   3 years  
Exercisable at ending [1]    
Exercise price (in dollars per share)     $ 7,500
Warrant [Member]      
Net Investment Income [Line Items]      
Exercise price (in dollars per share) $ 3.175    
[1] The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying warrants and the closing stock price of $3.175 for our common stock on December 31, 2021.