Stock-Based Compensation - Schedule of Stock Option Vested (Details)	6 Months Ended
Jul. 31, 2016
Tranche A [Member]
Shares for which the Stock Option is Vested	1/3
Vesting Date	May 17, 2016
Tranche B [Member]
Shares for which the Stock Option is Vested	1/3
Vesting Date Description	2nd anniversary of the Date of Grant
Tranche C [Member]
Shares for which the Stock Option is Vested	1/3
Vesting Date Description	3rd anniversary of the Date of Grant

General descriptive information regarding an arrangement under which employees and directors receive: (a) awards of equity shares, equity share options, or other equity instruments; or (b) the entity incurs liabilities to them: (1) in amounts based, at least in part, on the price of the entity's shares or other equity instruments; or (2) that require or may require settlement by issuance of the entity's shares. Such an arrangement is usually provided to employees and directors to compensate them, provide performance incentives to them, and to attract or retain their services. May also include pertinent information particular to a plan that is not elsewhere specified in the taxonomy.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration