CONCENTRATIONS OF REVENUES AND ACCOUNTS RECEIVABLE (Details) - customer	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2016	Oct. 31, 2015	Jan. 31, 2016
Product Concentration Risk | Revenue
Major Customers
Number of major power industry service customers	4	3	5	2
Product Concentration Risk | Major Customer One | Revenue
Major Customers
Percentage of major customers or segments	21.00%	36.00%	17.00%	42.00%
Product Concentration Risk | Major Customer Two | Revenue
Major Customers
Percentage of major customers or segments	19.00%	36.00%	16.00%	41.00%
Product Concentration Risk | Major Customer Three | Revenue
Major Customers
Percentage of major customers or segments	18.00%	10.00%	16.00%
Product Concentration Risk | Major Customer Four | Revenue
Major Customers
Percentage of major customers or segments	15.00%		14.00%
Product Concentration Risk | Major Customer Five | Revenue
Major Customers
Percentage of major customers or segments			14.00%
Customer Concentration Risk | Accounts Receivable
Major Customers
Number of major power industry service customers			3		2
Customer Concentration Risk | Major Customer One | Accounts Receivable
Major Customers
Percentage of consolidated accounts receivable accounted by major customer			16.00%		27.00%
Customer Concentration Risk | Major Customer Two | Accounts Receivable
Major Customers
Percentage of consolidated accounts receivable accounted by major customer			16.00%		27.00%
Customer Concentration Risk | Major Customer Three | Accounts Receivable
Major Customers
Percentage of consolidated accounts receivable accounted by major customer			14.00%
Power Industry Services | Customer Concentration Risk | Revenue
Major Customers
Percentage of major customers or segments	86.00%	98.00%	86.00%	97.00%