INCOME TAXES (Details) - Schedule of Unrecognized Tax Benefits Roll Forward $ in Thousands	3 Months Ended
Apr. 30, 2017 USD ($)
Schedule of Unrecognized Tax Benefits Roll Forward [Abstract]
Unrecognized tax benefits, January 31, 2017	$ 2,096
Changes for prior years’ tax positions	147
Unrecognized tax benefits, April 30, 2017	$ 2,243

Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration