Note 6 - Equity-accounted Investment - Change in Carrying Value of the Investment (Details) - USD ($)	12 Months Ended
Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018
Balance	$ 8,680,449	$ 693,502	$ 151,676
Share of income (loss) from URC	(89,073)	(1,858,901)	29,001
Gain on ownership interest dilution	3,056,656	755,545	394,656
Share of other comprehensive income			118,169
Share consideration received from sale of royalty interests		9,077,842
Translation gain	(132,705)	12,461
Balance	$ 11,515,327	$ 8,680,449	$ 693,502

Amount of gain (loss) from foreign currency translation of an equity method investment.

No definition available.

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- Definition

Represents the amount of equity method investment other comprehensive income.

+ References

No definition available.

+ Details

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- Definition

This item represents the entity's proportionate share for the period of the net gain on ownership interest dilution of its invested (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Represents the amount of income (loss) from Equity Method investment.

+ References

No definition available.

+ Details

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- Definition

The amount of share consideration from sale of royalty interests.

+ References

No definition available.

+ Details

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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 25
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8813-108599

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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