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v3.23.2

Stock Option Plan - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions | 6 Months Ended
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Jun. 30, 2023 | Jun. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Intrinsic value | $ 0.2 | $ 0.0
Stock options |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Granted (in shares) | 58,500 |
Stock options, unrecognized compensation cost | $ 0.9 |
Stock options, cost not yet recognized, remaining weighted average vesting period | 10 months 28 days |
Employee stock purchase plan |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Shares authorized, percentage | 1.00% |
Shares that remain available for future awards (in shares) | 508,608 |
Maximum employee payroll deduction percentage | 20.00% |
Restricted stock units |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Stock options, vesting period | 4 years |
Stock options, unrecognized compensation cost | $ 6.0 |
Aggregate intrinsic value, vested | $ 0.4 | $ 0.6
Weighted-average grant date fair value (in dollars per share) | $ 2.42 | $ 8.66
Stock options, cost not yet recognized, remaining weighted average vesting period | 3 years 3 months 18 days |
2019 Incentive Award Plan | Stock options |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Stock options, expiration period | 10 years |
Stock options, vesting period | 4 years |
Shares authorized, percentage | 4.00% |
Shares that remain available for future awards (in shares) | 1,740,628 |

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