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CUSTOMER CONCENTRATIONS (Tables) | 9 Months Ended
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Oct. 31, 2024
CUSTOMER CONCENTRATIONS |
schedule of the percentage of consolidated revenues | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended October 31, |  | ​ | Nine Months Ended October 31, | ​
​ | ​ | 2024 |  | 2023 | ​ | ​ | 2024 |  | 2023 | ​
Power industry services | ​ | ​ | 82.5 | % | ​ | 74.1 | % | ​ | ​ | 77.3 | % | ​ | 72.6 | %
Industrial construction services | ​ |  | 16.1 | ​ |  | 23.5 | ​ | ​ |  | 21.0 | ​ |  | 24.8 | ​
Telecommunications infrastructure services | ​ |  | 1.4 | ​ |  | 2.4 | ​ | ​ |  | 1.7 | ​ |  | 2.6 | ​

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