Debt - Schedule of Future Principal Repayments of Long-Term Debt (Details) $ in Thousands	Jul. 31, 2017 USD ($)
Capital Lease
2017	$ 23
2018	0
2019	0
Total repayments, capital lease	23
Total
2017	321
2018	597
2019	4,030
Total repayments	4,948
Senior Notes
Senior Term Loan
2017	298
2018	597
2019	4,030
Total repayments, senior term loan	4,925
Credit Agreement \| Senior Term Loan
Total
Deferred finance costs	$ 164

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of minimum lease payments for capital leases due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737