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CUSTOMER CONCENTRATIONS (Details) - customer |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2023 | Oct. 31, 2024 | Oct. 31, 2023 | Jan. 31, 2024
Customer Concentration Risk | Accounts Receivable |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Number of customers | 4 |  |  |  |  | 3
Customer Concentration Risk | Contract Asset |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Number of customers | 4 |  |  |  |  | 2
Customer Concentration Risk | Major Customer One | Accounts Receivable |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Percentage of major customers or segments |  |  |  | 18.00% |  | 16.00%
Customer Concentration Risk | Major Customer One | Contract Asset |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Percentage of major customers or segments |  |  |  | 17.00% |  | 39.00%
Customer Concentration Risk | Major Customer Two | Accounts Receivable |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Percentage of major customers or segments |  |  |  | 18.00% |  | 14.00%
Customer Concentration Risk | Major Customer Two | Contract Asset |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Percentage of major customers or segments | 17.00% |  |  |  |  | 32.00%
Customer Concentration Risk | Major Customer Three | Accounts Receivable |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Percentage of major customers or segments | 17.00% |  |  |  |  | 14.00%
Customer Concentration Risk | Major Customer Three | Contract Asset |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Percentage of major customers or segments |  |  |  | 14.00% |  |
Customer Concentration Risk | Major Customer Four | Accounts Receivable |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Percentage of major customers or segments | 12.00% |  |  |  |  |
Customer Concentration Risk | Major Customer Four | Contract Asset |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Percentage of major customers or segments | 14.00% |  |  |  |  |
Power Industry Services | Product Concentration Risk | Revenue |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Percentage of major customers or segments |  | 82.50% | 74.10% | 77.30% | 72.60% |
Power Industry Services | Customer Concentration Risk | Revenue |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Number of customers |  | 4 | 3 | 2 | 3 |
Power Industry Services | Customer Concentration Risk | Major Customer One | Revenue |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Percentage of major customers or segments |  | 29.00% | 23.00% | 28.00% | 19.00% |
Power Industry Services | Customer Concentration Risk | Major Customer Two | Revenue |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Percentage of major customers or segments |  | 15.00% | 20.00% | 12.00% | 17.00% |
Power Industry Services | Customer Concentration Risk | Major Customer Three | Revenue |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Percentage of major customers or segments |  | 13.00% | 17.00% |  |  |
Power Industry Services | Customer Concentration Risk | Major Customer Four | Revenue |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Percentage of major customers or segments |  | 11.00% |  |  |  |
Industrial Construction Services | Product Concentration Risk | Revenue |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Percentage of major customers or segments |  | 16.10% | 23.50% | 21.00% | 24.80% |
Industrial Construction Services | Customer Concentration Risk | Major Customer Three | Revenue |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Percentage of major customers or segments |  |  |  |  | 14.00% |
Telecommunication Infrastructure Services | Product Concentration Risk | Revenue |  |  |  |  |  |
Customer Concentrations |  |  |  |  |  |
Percentage of major customers or segments |  | 1.40% | 2.40% | 1.70% | 2.60% |

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