XML 55 R41.htm IDEA: XBRL DOCUMENT v3.23.1
Schedule of Valuation Assumptions for Stock Options (Details) - Share-Based Payment Arrangement, Option [Member] - $ / shares
3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Minimum      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Risk-free interest rate, minimum 3.60% 1.50%  
Volatility, minimum 117.00%   1.13%
Expected term (in years) 5 years    
Weighted-average fair value $ 0.59 $ 1.24  
Maximum      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Risk-free interest rate, maximum 3.90% 1.60%  
Volatility, maximum 119.00%    
Expected term (in years) 6 years    
Weighted-average fair value $ 0.68 $ 1.27