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STOCK-BASED COMPENSATION - Additional Information (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2021 shares | Apr. 30, 2021 person item shares | Apr. 30, 2020 person shares | Oct. 31, 2021 USD ($) shares | Oct. 31, 2020 USD ($) | Oct. 31, 2021 USD ($) shares | Oct. 31, 2020 USD ($) | Jun. 23, 2020 shares
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |  |
Percentage Reduction In The Aggregate Fair Value Of Stock Option |  |  |  |  |  | 88.50% |  |
Stock compensation expense | $ |  |  |  | $ 900 | $ 800 | $ 2,521 | $ 2,199 |
Unrecognized compensation cost | $ |  |  |  | 6,200 |  | $ 6,200 |  |
Compensation expense recognize, period |  |  |  |  |  | 3 years |  |
Intrinsic value of outstanding stock options | $ |  |  |  | 4,300 |  | $ 4,300 |  |
Intrinsic value of exercisable stock options | $ |  |  |  | $ 3,400 |  | $ 3,400 |  |
Period used for calculations |  |  |  |  |  | 5 years |  |
Fair value of award as a percentage of market value |  |  |  |  |  | 50.00% |  |
Minimum |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |  |
Period used for calculations |  |  |  |  |  | 3 years |  |
Maximum |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |  |
Period used for calculations |  |  |  |  |  | 5 years |  |
2020 Plan |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |  |
Number of shares of common stock reserved for issuance |  |  |  |  |  |  |  | 500,000
Stock Options Plans |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |  |
Initial vesting percentage |  |  |  |  |  | 33.33% |  |
Period to become exercisable |  |  |  |  |  | 3 years |  |
Number of shares of common stock available for award |  |  |  | 459,500 |  | 459,500 |  |
Number of shares of common stock reserved for issuance |  |  |  | 2,046,068 |  | 2,046,068 |  |
Intrinsic value of the stock options exercised | $ |  |  |  |  |  | $ 600 | $ 1,200 |
Performance-based restricted stock units | 2011 Plan |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |  |
Number of executives | person |  | 4 | 2 |  |  |  |  |
ISOs/NSOs | 2011 Plan |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |  |
Incentive stock option award maximum expiration period |  |  |  |  |  | 10 years |  |
Restricted Stock Units |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |  |
Awarded (in shares) |  |  |  |  |  | 128,000 |  |
Number of shares earned and issue under the restricted stock unit |  |  |  |  |  | 40,000 |  |
Restricted Stock Units | 2011 Plan |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |  |
Period to become exercisable |  |  |  |  |  | 3 years |  |
Number of shares earned and issue under the restricted stock unit |  |  |  |  |  | 40,471 |  |
Renewable Performance-Based Restricted Stock Units |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |  |
Awards authorized |  | 5,000 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award |  | three-year |  |  |  |  |  |
Time Based Restricted Stock Units |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |  |
Awarded (in shares) | 15,500 |  |  |  |  |  |  |
Initial vesting percentage |  | 33.33% |  |  |  |  |  |
Period to become exercisable | 3 years |  |  |  |  |  |  |
Awards authorized |  | 65,000 |  |  |  |  |  |
Number of anniversaries | item |  | 3 |  |  |  |  |  |
Senior executives | Performance-based restricted stock units | 2011 Plan |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |  |
Period to become exercisable |  |  |  |  |  | 3 years |  |
Percentage of the maximum shares for the target number of shares awarded |  |  |  |  |  | 50.00% |  |
Senior executives | Performance-based restricted stock units | 2011 Plan | Maximum |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |  |
Number of shares awarded |  | 49,000 | 45,000 |  |  |  |  |
Senior executives | Renewable Performance-Based Restricted Stock Units |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |  |  |
Number of executives | person |  | 2 |  |  |  |  |  |

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