Acquisition of Hema Diagnostics Systems, LLC - Carrying amount of goodwill and other intangible assets (Details)	9 Months Ended
Apr. 30, 2017 USD ($)
Total
Acquisition of HDS	$ 16,291,754
Current year amortization
Impairment of goodwill	(14,335,822)
Ending balance	1,955,932
Goodwill
Acquisition of HDS	14,335,822
Current year amortization
Impairment of goodwill	(14,335,822)
Ending balance
Other Intangibles, net
Acquisition of HDS	1,955,932
Current year amortization
Impairment of goodwill
Ending balance	$ 1,955,932

The amount of expense recognized in the current period that reflects the allocation of capitalized costs associated with acquisition of business. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

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-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
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-URI http://asc.fasb.org/extlink&oid=84160947&loc=d3e2207-128464

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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