CONCENTRATION OF REVENUES (Details) - customer	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015	Jan. 31, 2016
Product Concentration Risk | Revenue
Major Customers
Number of major power industry service customers	5	2	5	2
Product Concentration Risk | Major Customer One | Revenue
Major Customers
Percentage of major customers or segments	17.00%	46.00%	17.00%	46.00%
Product Concentration Risk | Major Customer Two | Revenue
Major Customers
Percentage of major customers or segments	17.00%	44.00%	16.00%	45.00%
Product Concentration Risk | Major Customer Three | Revenue
Major Customers
Percentage of major customers or segments	16.00%		14.00%
Product Concentration Risk | Major Customer Four | Revenue
Major Customers
Percentage of major customers or segments	14.00%		13.00%
Product Concentration Risk | Major Customer Five | Revenue
Major Customers
Percentage of major customers or segments	13.00%		13.00%
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			14.00%		27.00%
Customer Concentration Risk | Major Customer Two | Accounts Receivable
Major Customers
Percentage of consolidated accounts receivable accounted by major customer			13.00%		27.00%
Customer Concentration Risk | Major Customer Three | Accounts Receivable
Major Customers
Percentage of consolidated accounts receivable accounted by major customer			10.00%
Power Industry Services | Customer Concentration Risk | Revenue
Major Customers
Percentage of major customers or segments	88.00%	96.00%	86.00%	96.00%