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%