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CUSTOMER CONCENTRATIONS (Details) - customer | 3 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 30, 2023 | Apr. 30, 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 | 37.00% |  | 36.00%
Customer Concentration Risk [Member] | Major Customer One [Member] | Contract Asset |  |  |
Customer Concentrations |  |  |
Percentage of major customers or segments | 22.00% |  | 70.00%
Customer Concentration Risk [Member] | Major Customer Two [Member] | Accounts Receivable [Member] |  |  |
Customer Concentrations |  |  |
Percentage of major customers or segments | 10.00% |  | 12.00%
Customer Concentration Risk [Member] | Major Customer Two [Member] | Contract Asset |  |  |
Customer Concentrations |  |  |
Percentage of major customers or segments | 16.00% |  |
Customer Concentration Risk [Member] | Major Customer Three [Member] | Accounts Receivable [Member] |  |  |
Customer Concentrations |  |  |
Percentage of major customers or segments |  |  | 12.00%
Customer Concentration Risk [Member] | Major Customer Three [Member] | Contract Asset |  |  |
Customer Concentrations |  |  |
Percentage of major customers or segments | 12.00% |  |
Power Industry Services [Member] | Product Concentration Risk [Member] | Revenue [Member] |  |  |
Customer Concentrations |  |  |
Percentage of major customers or segments | 68.00% | 74.00% |
Power Industry Services [Member] | Customer Concentration Risk [Member] | Revenue [Member] |  |  |
Customer Concentrations |  |  |
Number of customers | 4 | 1 |
Power Industry Services [Member] | Customer Concentration Risk [Member] | Major Customer One [Member] | Revenue [Member] |  |  |
Customer Concentrations |  |  |
Percentage of major customers or segments | 16.00% | 48.00% |
Power Industry Services [Member] | Customer Concentration Risk [Member] | Major Customer Two [Member] | Revenue [Member] |  |  |
Customer Concentrations |  |  |
Percentage of major customers or segments | 14.00% |  |
Power Industry Services [Member] | Customer Concentration Risk [Member] | Major Customer Three [Member] | Revenue [Member] |  |  |
Customer Concentrations |  |  |
Percentage of major customers or segments | 14.00% |  |
Power Industry Services [Member] | Customer Concentration Risk [Member] | Major Customer Four | Revenue [Member] |  |  |
Customer Concentrations |  |  |
Percentage of major customers or segments | 13.00% |  |
Industry services | Product Concentration Risk [Member] | Revenue [Member] |  |  |
Customer Concentrations |  |  |
Percentage of major customers or segments | 29.00% | 22.00% |

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