FINANCING ARRANGEMENTS (Details)
$ in Millions
3 Months Ended
Apr. 30, 2017
USD ($)
Expires in January 2018  
Financing Arrangements  
Letters of credit outstanding amount $ 0.4
Revolving Credit Facility  
Financing Arrangements  
Borrowing available under financing arrangements 50.0
Borrowings outstanding under Bank financing arrangements $ 5.9
London Interbank Offered Rate (LIBOR) | Revolving Credit Facility  
Financing Arrangements  
Variable rate 30-day LIBOR
Interest rate margin on referred rate 2.00%