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Stock-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  |  |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Oct. 11, 2021 | Nov. 02, 2020 | Dec. 18, 2019 | Dec. 14, 2018 | Sep. 30, 2021 | Jun. 30, 2021 | Apr. 30, 2021 | Jan. 31, 2020 | Jan. 31, 2019 | Jan. 31, 2018 | Oct. 31, 2021 | Oct. 31, 2020 | Oct. 31, 2019 | Apr. 30, 2011
Share-based Compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation expense |  |  |  |  |  |  |  |  |  |  | $ 4,000 | $ 4,500 | $ 3,600 |
Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted shares granted (in shares) | 8,199 |  |  |  |  |  |  |  |  |  | 36 |  |  |
Restricted stock closing price awarded (in dollars per share) | $ 36.59 |  |  |  |  |  |  |  |  |  | $ 61.00 |  |  |
Stock-based compensation expense | $ 100 |  |  |  |  |  |  |  |  |  | $ 4,000 | 4,500 |  |
Annual incremental vesting percentage | 33.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Forfeited, Number of Shares |  |  |  |  |  |  |  |  |  |  | 6 |  |  |
Vested, Number of Shares |  |  |  |  |  |  |  |  |  |  | 63 |  |  |
Restricted Stock [Member] | Chief Financial Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation expense |  |  |  |  |  |  |  |  |  |  | $ 100 |  |  |
Forfeited, Number of Shares |  |  |  |  |  | 5,598 |  |  |  |  |  |  |  |
Restricted Stock [Member] | Non-employee directors [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted shares granted (in shares) |  | 16,500 |  |  |  |  |  | 18,000 | 21,000 |  |  |  |  |
Restricted stock closing price awarded (in dollars per share) |  |  |  |  |  |  |  | $ 67.97 | $ 87.21 | $ 71.56 |  |  |  |
Vesting period |  | 1 year |  |  |  |  |  |  | 1 year |  |  |  |  |
Stock-based compensation expense |  |  |  |  |  |  |  |  |  |  |  | 1,100 | $ 1,600 |
Per employee restricted shares granted (in shares) |  | 1,500 |  |  |  |  |  | 1,500 | 1,750 |  |  |  |  |
Restricted Stock [Member] | Executive officers [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted shares granted (in shares) |  | 9,334 | 31,158 | 14,522 |  |  |  |  |  |  |  |  |  |
Restricted stock closing price awarded (in dollars per share) |  | $ 67.97 | $ 87.63 | $ 85.67 |  |  |  |  |  |  |  |  |  |
Stock-based compensation expense |  |  |  |  |  |  |  |  |  |  | $ 1,000 | $ 1,400 |  |
Annual incremental vesting percentage |  |  |  |  |  |  |  |  |  |  |  | 33.00% | 33.00% |
Restricted Stock [Member] | Key Employees [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting period |  |  |  |  |  |  |  |  |  |  | 2 years |  |  |
Restricted Stock [Member] | Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation expense |  |  |  |  | $ 700 |  | $ 300 |  |  |  | $ 700 |  |  |
Stock Options [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |
Award expiration period |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |
Vesting period |  |  |  |  | 2 years |  |  |  |  |  |  |  |  |
Options granted (in shares) |  |  |  |  | 5,000 |  |  |  |  |  |  |  |  |
Option grant date fair value |  |  |  |  | $ 200 |  |  |  |  |  | 98 |  |  |
Option grant date fair value (in dollars per share) |  |  |  |  | $ 39.20 |  |  |  |  |  |  |  |  |
Unrecognized stock based compensation expenses |  |  |  |  |  |  |  |  |  |  | $ 200 |  |  |
Unrecognized compensation cost period |  |  |  |  |  |  |  |  |  |  | 24 months |  |  |
2011 Management Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock shares authorized (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,500,000
2020 Management Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock shares authorized (in shares) |  |  |  |  |  |  | 1,500,000 |  |  |  |  |  |  |
Award expiration period |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |

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