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PURCHASED INTANGIBLE ASSETS - Goodwill and Finite Lived Intangible Assets (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Apr. 30, 2022 | Apr. 30, 2021 | Jan. 31, 2022
Indefinite-Lived Intangible Assets |  |  |
Goodwill | $ 28,033 | $ 27,943 | $ 28,033
Intangible Assets - Gross Carrying Amount | 7,426 |  |
Accumulated Amortization | 4,252 |  |
Intangible Assets, Net (Excluding Goodwill) | 3,175 |  | 3,322
Amortization of intangibles | 166 | $ 228 |
TRC. |  |  |
Indefinite-Lived Intangible Assets |  |  |
Goodwill |  |  | 9,500
GPS. |  |  |
Indefinite-Lived Intangible Assets |  |  |
Goodwill | $ 18,500 |  |
Trade Name |  |  |
Indefinite-Lived Intangible Assets |  |  |
Finite-Lived Intangible Assets - Estimated Useful Life | 15 years |  |
Finite Lived Intangible Assets - Gross Carrying Amount | $ 4,499 |  |
Accumulated Amortization | 1,925 |  |
Finite Lived Intangible Assets - Net Amount | $ 2,574 |  | 2,650
Process certifications |  |  |
Indefinite-Lived Intangible Assets |  |  |
Finite-Lived Intangible Assets - Estimated Useful Life | 7 years |  |
Finite Lived Intangible Assets - Gross Carrying Amount | $ 1,897 |  |
Accumulated Amortization | 1,739 |  |
Finite Lived Intangible Assets - Net Amount | $ 158 |  | 226
Customer relationships |  |  |
Indefinite-Lived Intangible Assets |  |  |
Finite-Lived Intangible Assets - Estimated Useful Life | 10 years |  |
Finite Lived Intangible Assets - Gross Carrying Amount | $ 916 |  |
Accumulated Amortization | 588 |  |
Finite Lived Intangible Assets - Net Amount | $ 328 |  | 351
Customer relationships | Minimum |  |  |
Indefinite-Lived Intangible Assets |  |  |
Finite-Lived Intangible Assets - Estimated Useful Life | 10 years |  |
Customer Contracts |  |  |
Indefinite-Lived Intangible Assets |  |  |
Finite-Lived Intangible Assets - Estimated Useful Life | 1 year |  |
Intangible Assets - Gross Carrying Amount | $ 114 |  |
Finite Lived Intangible Assets - Net Amount | $ 114 |  | $ 95

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