CUSTOMER CONCENTRATIONS (Details) - customer	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
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	2	2
Customer Concentration Risk [Member] | Major Customer One [Member] | Accounts Receivable [Member]
Customer Concentrations
Percentage of consolidated accounts receivable accounted by major customer	22.00%	26.00%
Customer Concentration Risk [Member] | Major Customer One [Member] | Contract Asset
Customer Concentrations
Percentage of major customers or segments	31.00%	64.00%
Customer Concentration Risk [Member] | Major Customer Two [Member] | Accounts Receivable [Member]
Customer Concentrations
Percentage of consolidated accounts receivable accounted by major customer	15.00%	11.00%
Customer Concentration Risk [Member] | Major Customer Two [Member] | Contract Asset
Customer Concentrations
Percentage of major customers or segments	13.00%	12.00%
Customer Concentration Risk [Member] | Major Customer Three [Member] | Accounts Receivable [Member]
Customer Concentrations
Percentage of consolidated accounts receivable accounted by major customer	12.00%	11.00%
Power Industry Services [Member] | Product Concentration Risk [Member] | Revenue [Member]
Customer Concentrations
Percentage of major customers or segments	78.00%	81.00%	57.00%
Power Industry Services [Member] | Customer Concentration Risk [Member] | Revenue [Member]
Customer Concentrations
Number of customers	1	1	2
Power Industry Services [Member] | Customer Concentration Risk [Member] | Major Customer One [Member] | Revenue [Member]
Customer Concentrations
Percentage of major customers or segments	57.00%	67.00%	22.00%
Power Industry Services [Member] | Customer Concentration Risk [Member] | Major Customer Two [Member] | Revenue [Member]
Customer Concentrations
Percentage of major customers or segments			15.00%
Industry services | Product Concentration Risk [Member] | Revenue [Member]
Customer Concentrations
Percentage of major customers or segments	19.00%	17.00%	40.00%