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CUSTOMER CONCENTRATIONS (Details) - customer | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jul. 31, 2023 | Jul. 31, 2022 | Jul. 31, 2023 | Jul. 31, 2022 | Jan. 31, 2023
Customer Concentration Risk [Member] | Accounts Receivable [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Number of customers |  |  | 3 |  | 3
Customer Concentration Risk [Member] | Contract Asset |  |  |  |  |
Customer Concentrations |  |  |  |  |
Number of customers |  |  | 3 |  | 1
Customer Concentration Risk [Member] | Major Customer One [Member] | Accounts Receivable [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments |  |  | 35.00% |  | 36.00%
Customer Concentration Risk [Member] | Major Customer One [Member] | Contract Asset |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments |  |  | 30.00% |  | 70.00%
Customer Concentration Risk [Member] | Major Customer Two [Member] | Accounts Receivable [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments |  |  | 15.00% |  | 12.00%
Customer Concentration Risk [Member] | Major Customer Two [Member] | Contract Asset |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments |  |  | 15.00% |  |
Customer Concentration Risk [Member] | Major Customer Three [Member] | Accounts Receivable [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments |  |  | 10.00% |  | 12.00%
Customer Concentration Risk [Member] | Major Customer Three [Member] | Contract Asset |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments |  |  | 13.00% |  |
Power Industry Services [Member] | Product Concentration Risk [Member] | Revenue [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments | 75.00% | 77.00% | 72.00% | 76.00% |
Power Industry Services [Member] | Customer Concentration Risk [Member] | Revenue [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Number of customers | 3 | 2 | 3 | 1 |
Power Industry Services [Member] | Customer Concentration Risk [Member] | Major Customer One [Member] | Revenue [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments | 21.00% | 47.00% | 19.00% | 47.00% |
Power Industry Services [Member] | Customer Concentration Risk [Member] | Major Customer Two [Member] | Revenue [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments | 20.00% | 10.00% | 17.00% |  |
Power Industry Services [Member] | Customer Concentration Risk [Member] | Major Customer Three [Member] | Revenue [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments | 12.00% |  | 11.00% |  |
Industrial Construction Services | Product Concentration Risk [Member] | Revenue [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments | 23.00% | 20.00% | 26.00% | 21.00% |
Industrial Construction Services | Customer Concentration Risk [Member] | Revenue [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Number of customers |  |  | 1 |  |
Industrial Construction Services | Customer Concentration Risk [Member] | Major Customer One [Member] | Revenue [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments |  |  | 11.00% |  |

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