Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266

Name:	us-gaap_Goodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Goodwill and Intangible Assets - Changes in the carrying amount of goodwill and other intangible assets (Details) - USD ($)	Oct. 31, 2018	Jul. 31, 2018	Jan. 18, 2017
Balance		$ 8,946,073
Balance, Goodwill		8,883,982	$ 14,300,000
Balance, Other Intangibles		62,091
Total
Balance		3,187,757
Balance, Goodwill	$ 12,133,830
Goodwill
Balance
Balance, Goodwill	8,883,982
Other Intangibles, net
Balance		$ 3,187,757
Balance, Goodwill	$ 3,249,848