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 |