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%