Note 9 - Equity-Accounted Investment - Equity-accounted Investment (Details) - USD ($) $ in Thousands	12 Months Ended
Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020
Balance	$ 20,730
Addition	(0)	$ 3,397	$ (0)
Balance	24,177	20,730
Uranium Royalty Corp [Member]
Balance	20,730	11,515	8,680
Share of income (loss) from URC	153	732	(89)
Gain on dilution of ownership interest	3,973	4,473	3,057
Translation gain (loss)	(679)	613	(133)
Addition		3,397
Share of income (loss) from URC	153	732	(89)
Balance	$ 24,177	$ 20,730	$ 11,515

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

No definition available.

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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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- Definition

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

+ 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 https://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(10))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 25
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8813-108599

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- Definition

The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3213-108585

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- Details

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