Stock-Based Compensation - Fair Value Assumptions (Details) - USD ($) $ / shares in Units, $ in Thousands |
6 Months Ended | 12 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2020 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|
Assumptions used | ||||
Expected term (in years) | 6 years 6 months | |||
Expected dividend yield (as a percent) | 0.00% | |||
SARs liability | $ 102,000 | |||
Stock options | ||||
Assumptions used | ||||
Risk-free interest rate (as a percent) | 1.02% | 0.45% | ||
Expected volatility (as a percent) | 123.32% | 105.14% | ||
Expected term (in years) | 6 years 3 months | 6 years | ||
Expected dividend yield (as a percent) | 0.00% | 0.00% | ||
Weighted average grant date fair value (in dollars per share) | $ 3.80 | $ 3.75 | ||
Annualized forfeiture rate (as a percent) | 4.14% | 4.14% | ||
2021 SAR | ||||
Assumptions used | ||||
Risk-free interest rate (as a percent) | 0.95% | |||
Expected volatility (as a percent) | 129.79% | |||
Expected dividend yield (as a percent) | 0.00% | |||
Weighted average grant date fair value (in dollars per share) | $ 0.62 |