INTANGIBLE ASSETS - Changes in the Balances of Goodwill (Details) - USD ($) $ in Thousands |
Jan. 31, 2026 |
Jan. 31, 2025 |
Jan. 31, 2024 |
|---|---|---|---|
| Components of goodwill | |||
| Goodwill | $ 36,980 | ||
| Accumulated impairment losses | (8,947) | ||
| Goodwill, net | 28,033 | $ 28,033 | $ 28,033 |
| Power Services | |||
| Components of goodwill | |||
| Goodwill | 22,525 | ||
| Accumulated impairment losses | (4,049) | ||
| Goodwill, net | 18,476 | 18,476 | 18,476 |
| Industrial Construction Services | |||
| Components of goodwill | |||
| Goodwill | 14,365 | ||
| Accumulated impairment losses | (4,898) | ||
| Goodwill, net | 9,467 | 9,467 | 9,467 |
| Teledata Services | |||
| Components of goodwill | |||
| Goodwill | 90 | ||
| Goodwill, net | $ 90 | $ 90 | $ 90 |
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- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, before accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Includes amount, before amortization expense and impairment loss, of goodwill for private company. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of accumulated impairment loss for asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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