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CUSTOMER CONCENTRATIONS (Details) - customer | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jul. 31, 2022 | Jul. 31, 2021 | Jul. 31, 2022 | Jul. 31, 2021 | Jan. 31, 2022
Customer Concentration Risk [Member] | Accounts Receivable [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Number of customers |  |  | 2 |  | 3
Customer Concentration Risk [Member] | Contract Asset |  |  |  |  |
Customer Concentrations |  |  |  |  |
Number of customers |  |  | 1 |  | 2
Customer Concentration Risk [Member] | Major Customer One [Member] | Accounts Receivable [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of consolidated accounts receivable accounted by major customer |  |  | 17.00% |  | 22.00%
Customer Concentration Risk [Member] | Major Customer One [Member] | Contract Asset |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments |  |  | 14.00% |  | 31.00%
Customer Concentration Risk [Member] | Major Customer Two [Member] | Accounts Receivable [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of consolidated accounts receivable accounted by major customer |  |  | 10.00% |  | 15.00%
Customer Concentration Risk [Member] | Major Customer Two [Member] | Contract Asset |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments |  |  |  |  | 13.00%
Customer Concentration Risk [Member] | Major Customer Three [Member] | Accounts Receivable [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of consolidated accounts receivable accounted by major customer |  |  |  |  | 12.00%
Power Industry Services [Member] | Product Concentration Risk [Member] | Revenue [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments | 77.00% | 74.00% | 76.00% | 76.00% |
Power Industry Services [Member] | Customer Concentration Risk [Member] | Revenue [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Number of customers | 2 | 1 | 1 | 1 |
Power Industry Services [Member] | Customer Concentration Risk [Member] | Major Customer One [Member] | Revenue [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments | 47.00% | 59.00% | 47.00% | 63.00% |
Power Industry Services [Member] | Customer Concentration Risk [Member] | Major Customer Two [Member] | Revenue [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments | 10.00% |  |  |  |
Industry services | Product Concentration Risk [Member] | Revenue [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments | 20.00% | 23.00% | 21.00% | 22.00% |
Industry services | Customer Concentration Risk [Member] | Revenue [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Number of customers |  | 1 |  | 1 |
Industry services | Customer Concentration Risk [Member] | Major Customer One [Member] | Revenue [Member] |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments |  | 12.00% |  | 12.00% |

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