DEBT Asia Revolving Credit Facility (Details) - Line of credit, Asia facility [Member] $ in Millions	3 Months Ended	6 Months Ended
Jul. 31, 2016 USD ($)	Jul. 31, 2016 USD ($)
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 10.0	$ 10.0
Debt instrument, basis spread on variable rate		1.50%
Carry forward period borrowings maximum	1 year
Carry forward period revolving credit facility	1 month
London Interbank Offered Rate Period	1 month

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant