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Income Taxes (Details) - Schedule of Unrecognized Tax Benefits Roll Forward $ in Thousands	6 Months Ended
	Jul. 31, 2015 USD ($)
Schedule of Unrecognized Tax Benefits Roll Forward [Abstract]
Unrecognized tax benefits, January 31, 2015	$ 1,658
Changes for prior years’ tax positions	(861)
Unrecognized tax benefits, July 31, 2015	$ 797

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- References

No definition available.

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- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

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)



-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Glossary Unrecognized Tax Benefit



-URI http://asc.fasb.org/extlink&oid=6527854

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- Definition

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

+ References

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=6907707&loc=SL6600010-109319

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