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%