CUSTOMER CONCENTRATIONS (Details) - customer	3 Months Ended		12 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Jan. 31, 2024
Customer Concentration Risk | Accounts Receivable
Customer Concentrations
Number of customers	3		3
Customer Concentration Risk | Contract Asset
Customer Concentrations
Number of customers	2		2
Customer Concentration Risk | Major Customer One | Accounts Receivable
Customer Concentrations
Percentage of major customers or segments	25.00%		16.00%
Customer Concentration Risk | Major Customer One | Contract Asset
Customer Concentrations
Percentage of major customers or segments	33.00%		39.00%
Customer Concentration Risk | Major Customer Two | Accounts Receivable
Customer Concentrations
Percentage of major customers or segments	22.00%		14.00%
Customer Concentration Risk | Major Customer Two | Contract Asset
Customer Concentrations
Percentage of major customers or segments	28.00%		32.00%
Customer Concentration Risk | Major Customer Three | Accounts Receivable
Customer Concentrations
Percentage of major customers or segments	12.00%		14.00%
Power Industry Services | Product Concentration Risk | Revenue
Customer Concentrations
Percentage of major customers or segments	70.00%	68.00%
Power Industry Services | Customer Concentration Risk | Revenue
Customer Concentrations
Number of customers	2	4
Power Industry Services | Customer Concentration Risk | Major Customer One | Revenue
Customer Concentrations
Percentage of major customers or segments	28.00%	16.00%
Power Industry Services | Customer Concentration Risk | Major Customer Two | Revenue
Customer Concentrations
Percentage of major customers or segments	11.00%	14.00%
Power Industry Services | Customer Concentration Risk | Major Customer Three | Revenue
Customer Concentrations
Percentage of major customers or segments		14.00%
Power Industry Services | Customer Concentration Risk | Major Customer Four | Revenue
Customer Concentrations
Percentage of major customers or segments		13.00%
Industrial Construction Services | Product Concentration Risk | Revenue
Customer Concentrations
Percentage of major customers or segments	28.00%	29.00%