CONCENTRATIONS OF REVENUES (Details) - customer	3 Months Ended		12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015	Jan. 31, 2016
Product Concentration Risk | Revenue
Major Customers
Number of major power industry service customers	5	2
Product Concentration Risk | Major Customer One | Revenue
Major Customers
Percentage of major customers or segments	18.00%	47.00%
Product Concentration Risk | Major Customer Two | Revenue
Major Customers
Percentage of major customers or segments	15.00%	45.00%
Product Concentration Risk | Major Customer Three | Revenue
Major Customers
Percentage of major customers or segments	15.00%
Product Concentration Risk | Major Customer Four | Revenue
Major Customers
Percentage of major customers or segments	12.00%
Product Concentration Risk | Major Customer Five Member | Revenue
Major Customers
Percentage of major customers or segments	10.00%
Customer Concentration Risk | Accounts Receivable
Major Customers
Number of major power industry service customers	2		2
Customer Concentration Risk | Major Customer One | Accounts Receivable
Major Customers
Percentage of consolidated accounts receivable accounted by major customer	26.00%		27.00%
Customer Concentration Risk | Major Customer Two | Accounts Receivable
Major Customers
Percentage of consolidated accounts receivable accounted by major customer	26.00%		27.00%
Power Industry Services | Customer Concentration Risk | Revenue
Major Customers
Percentage of major customers or segments	83.00%	97.00%