Quarterly report pursuant to Section 13 or 15(d)

Stock Plans (Details 2)

Stock Plans (Details 2) - USD ($)
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Share-Based Payment Arrangement [Abstract]    
Weighted-average risk-free interest rate 1.47%
Expected dividend payments
Expected holding period (years) [1]   5 years 4 months 24 days
Weighted-average volatility factor [2] 113.20%
Estimated forfeiture rates for options granted [3] 5.14%
[1] Expected holding period is based on historical experience of similar awards, giving consideration to the contractual terms of the stock-based awards, vesting schedules and the expectations of future employee behavior.
[2] Weighted average volatility is based on the historical volatility of our common stock.
[3] Estimated forfeiture rates are based on historical data.