Note 8 - Equity-accounted Investments (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jan. 31, 2023	Jan. 31, 2023	Jul. 31, 2022	Jan. 31, 2022
Uranium Royalty Corp [Member]
Equity Method Investment, Shares Owned (in shares)	15,000,000	15,000,000
Equity Method Investment, Ownership Percentage	15.10%	15.10%	15.50%
Ownership Interest Percentage, Contingent, Outstanding Options and Warrants Fully Exercised	12.70%	12.70%
Equity Method Investments, Fair Value Disclosure	$ 42,500	$ 42,500	$ 43,700
JCU (Canada) Exploration Company Limited [Member]
Equity Method Investment, Ownership Percentage	50.00%	50.00%
Equity Method Investment, Recoverable Exploration Expenditures	$ 357	$ 751
Equity Method Investment Amount Owed From JCU	$ 346	$ 346		$ 0

Represents equity method investment amount owed from JCU.

No definition available.

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Namespace Prefix:	uec_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Recoverable exploration expenditures incurred under equity method of accounting.

+ References

No definition available.

+ Details

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Namespace Prefix:	uec_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Number of shares owned in equity method investment.

+ References

No definition available.

+ Details

Name:	uec_EquityMethodInvestmentSharesOwned
Namespace Prefix:	uec_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Ownership interest percentage once outstanding options and warrants are fully exercised.

+ References

No definition available.

+ Details

Name:	uec_OwnershipInterestPercentageContingentOutstandingOptionsAndWarrantsFullyExercised
Namespace Prefix:	uec_
Data Type:	dtr-types:percentItemType
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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	instant

- Definition

Fair value portion of investments accounted under the equity method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 25
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=126960272&loc=d3e32014-111567

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: