Stock-Based Compensation Plan - Option Activity Under Plan (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands |
12 Months Ended |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
| Stock-Based Compensation Plan |
|
|
|
| Outstanding |
274
|
68
|
|
| Granted |
213
|
211
|
|
| Forfeited |
|
(4)
|
|
| Expired |
(1)
|
(1)
|
|
| Outstanding |
486
|
274
|
68
|
| Vested and expected to vest |
451
|
238
|
|
| Exercisable |
178
|
66
|
|
| Weighted-Average Exercise Price, Outstanding |
$ 20.57
|
$ 68.56
|
|
| Weighted-Average Exercise Price, Granted |
7.02
|
5.01
|
|
| Weighted-Average Exercise Price, Forfeited |
|
7.19
|
|
| Weighted-Average Exercise Price, Expired |
72.67
|
28.67
|
|
| Weighted-Average Exercise Price, Outstanding |
14.58
|
20.57
|
$ 68.56
|
| Weighted - Average Exercise Price, Vested and expected to vest |
15.21
|
22.66
|
|
| Weighted-Average Exercise Price, Exercisable |
$ 28.09
|
$ 63.95
|
|
| Weighted Average Remaining Contractual Term (In years), Outstanding |
8 years 4 months 24 days
|
8 years 8 months 12 days
|
7 years 8 months 12 days
|
| Weighted Average Remaining Contractual Term (In years), Granted |
9 years 3 months 18 days
|
9 years 4 months 24 days
|
|
| Weighted Average Remaining Contractual Term (In years), Vested and expected to vest |
8 years 4 months 24 days
|
8 years 8 months 12 days
|
|
| Weighted Average Remaining Contractual Term (In years), Exercisable |
7 years 7 months 6 days
|
7 years 2 months 12 days
|
|
| Aggregate Intrinsic Value, Outstanding |
$ 3,750
|
|
|
| Aggregate Intrinsic Value, Outstanding |
7,800
|
$ 3,750
|
|
| Aggregate Intrinsic Value, Vested and expected to vest |
7,114
|
|
|
| Aggregate Intrinsic Value, Exercisable |
$ 3,412
|
$ 3,070
|
|