| Share-based Payment Arrangement, Activity [Table Text Block] |
| Location |
|
Type of Award |
|
Shares Unvested at January 31, 2021 |
|
|
Weighted Average Fair Value |
|
|
Unrecognized Compensation Expense at January 31, 2021 |
|
Date Expense will be Recognized Through (Straight-Line Basis) |
| U.S. |
|
Time Based Only |
|
|
866,953 |
|
|
$ |
6.20 |
|
|
$ |
4,321,570 |
|
12/6/2023 |
| U.S. |
|
$6 Market/Time- Based |
|
|
580,091 |
|
|
$ |
6.06 |
|
|
|
3,306,662 |
|
1/22/2025 |
| U.S. |
|
$8 Market/Time- Based |
|
|
580,092 |
|
|
$ |
5.35 |
|
|
|
2,931,121 |
|
5/1/2025 |
| U.S. |
|
$10 Market/Time- Based |
|
|
580,106 |
|
|
$ |
4.72 |
|
|
|
2,593,411 |
|
7/9/2025 |
| U.S. |
|
$6 Market/Time- Based |
|
|
150,697 |
|
|
$ |
6.19 |
|
|
|
- |
|
10/29/2020 |
| U.S. |
|
$8 Market/Time- Based |
|
|
150,697 |
|
|
$ |
5.47 |
|
|
|
- |
|
10/29/2020 |
| U.S. |
|
$10 Market/Time- Based |
|
|
150,706 |
|
|
$ |
4.83 |
|
|
|
- |
|
10/29/2020 |
| U.S. |
|
$13 Market/Time- Based |
|
|
1,925 |
|
|
$ |
3.86 |
|
|
|
5,524 |
|
5/4/2024 |
| U.S. |
|
$16 Market/Time- Based |
|
|
1,925 |
|
|
$ |
3.46 |
|
|
|
4,913 |
|
8/27/2024 |
| U.S. |
|
$19 Market/Time- Based |
|
|
1,925 |
|
|
$ |
3.15 |
|
|
|
4,351 |
|
11/19/2024 |
| U.K. |
|
Time Based Only |
|
|
136,685 |
|
|
$ |
6.08 |
|
|
|
602,123 |
|
12/6/2023 |
| U.K. |
|
$6 Market/Time- Based |
|
|
84,591 |
|
|
$ |
5.85 |
|
|
|
460,006 |
|
1/22/2025 |
| U.K. |
|
$8 Market/Time- Based |
|
|
84,591 |
|
|
$ |
5.16 |
|
|
|
407,212 |
|
5/1/2025 |
| U.K. |
|
$10 Market/Time- Based |
|
|
84,602 |
|
|
$ |
4.55 |
|
|
|
360,018 |
|
7/9/2025 |
| U.K. |
|
$6 Market/Time- Based |
|
|
28,885 |
|
|
$ |
6.18 |
|
|
|
- |
|
10/29/2020 |
| U.K. |
|
$8 Market/Time- Based |
|
|
28,885 |
|
|
$ |
5.46 |
|
|
|
- |
|
10/29/2020 |
| U.K. |
|
$10 Market/Time- Based |
|
|
28,886 |
|
|
$ |
4.82 |
|
|
|
- |
|
10/29/2020 |
| Total |
|
|
3,542,242 |
|
|
|
|
|
|
$ |
14,996,911 |
|
|
|