Acquisitions - Aexis Medical (Details) - Aexis Medical - USD ($)	12 Months Ended
Jul. 31, 2018	Mar. 21, 2018
Business Acquisition [Line Items]
Total consideration for the transaction, excluding acquisition-related costs	$ 21,600,000
Up-front consideration	20,308,000
Contingent consideration	$ 1,292,000
Minimum
Business Acquisition [Line Items]
Contingent consideration		$ 0
Maximum
Business Acquisition [Line Items]
Contingent consideration		$ 1,850,000

Represents the cash consideration paid to shareholders of the acquired entity excluding the acquisition-related costs of the acquisition.

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 35
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

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