Note 7 - Equity-accounted Investment (Details Textual) - Uranium Royalty Corp [Member] - USD ($)	Jan. 31, 2019	Dec. 04, 2018
Equity Method Investment, Shares Owned	14,000,000
Equity Method Investment, Ownership Percentage	33.70%
Royalty Purchase Agreement [Member]
Number Of Shares Acquired Through Sale Of Royalties	12,000,000	12,000,000
Equity Method Investments, Fair Value Disclosure	$ 9,077,842

Number of shares owned in equity method investment.

No definition available.

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

- Definition

The number of shares to be acquired through the sale of royalties.

+ References

No definition available.

+ Details

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

- 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 http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
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 http://asc.fasb.org/extlink&oid=66022186&loc=d3e32014-111567

+ Details

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

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=uec_UraniumRoyaltyCorpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=uec_RoyaltyPurchaseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: