CONCENTRATION OF REVENUES (Details) - Customer Concentration Risk - customer	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014
Accounts Receivable
Major Customers
Number of major power industry service customers	2	2
Major Customer One | Accounts Receivable
Major Customers
Percentage of major customers or segments	27.00%	50.00%
Major Customer Two | Accounts Receivable
Major Customers
Percentage of major customers or segments	27.00%	45.00%
Power Industry Services | Revenue
Major Customers
Percentage of major customers or segments	94.00%	98.00%	96.00%
Number of major power industry service customers	2	3	3
Power Industry Services | Major Customer One | Revenue
Major Customers
Percentage of major customers or segments	38.00%	45.00%	33.00%
Power Industry Services | Major Customer Two | Revenue
Major Customers
Percentage of major customers or segments	35.00%	41.00%	24.00%
Power Industry Services | Major Customer Three | Revenue
Major Customers
Percentage of major customers or segments		12.00%	22.00%