XML 70 R56.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

FAIR VALUE ACCOUNTING - Narrative (Details) $ / shares in Units, $ in Thousands, $ in Thousands |  |  |  |  |  |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 05, 2023 shares | Nov. 29, 2023 USD ($) | Nov. 09, 2023 USD ($) | Oct. 19, 2023 CAD ($) $ / shares shares | Feb. 14, 2023 percentagepoint | Jan. 24, 2023 shares | Jun. 30, 2024 USD ($) shares | Jun. 30, 2023 USD ($) shares | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |
Change In Value Of Investments Accounted At Fair Value |  |  |  |  |  |  | $ 0 | $ 770 | $ 0 | $ (2,189)
Convertible Note Receivable, Redeemed |  |  | $ 40,000 |  |  |  |  |  |  |
Convertible Note Receivable, Consideration Received |  |  | 21,000 |  |  |  |  |  |  |
Convertible Note Receivable, Unpaid Accrued Interest |  |  | 1,500 |  |  |  |  |  |  |
Convertible Note Receivable, Sales Commission |  | $ 100 |  |  |  |  |  |  |  |
Proceeds From Convertible Note Receivable |  |  | 22,400 |  |  |  |  |  |  |
Convertible Notes Receivable, Sold |  |  | $ 20,000 |  |  |  |  |  |  |
Issuance of common shares for cash, net of issuance costs |  |  |  |  |  |  |  |  | $ 4,788 | $ 0
Sale of stock, number of shares issued (in shares) | shares |  |  |  |  |  |  | 0 | 0 |  |
IsoEnergy |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |
Subsidiary, Ownership Percentage, Parent | 5.00% |  |  |  |  |  |  |  |  |
Private Placement |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |
Price per share (in USD per share) | $ / shares |  |  |  | $ 4.50 |  |  |  |  |  |
Issuance of common shares for cash, net of issuance costs |  |  |  | $ 1,830 |  |  |  |  |  |
Number of shares available (in shares) | shares | 8,501,424 |  |  | 8,134,500 |  |  |  |  |  |
Sale of stock, number of shares issued (in shares) | shares |  |  |  | 406,650 |  |  |  |  |  |
Measurement Input, Price Volatility |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |
Notes Receivable, Fair Value Measurement Input | percentagepoint |  |  |  |  | 0.60 |  |  |  |  |
Measurement Input, Yield |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |
Notes Receivable, Fair Value Measurement Input | percentagepoint |  |  |  |  | 0.095 |  |  |  |  |
CUR |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |
Shares received per common stock share issued (in shares) | shares | 0.500 |  |  |  |  |  |  |  |  |
Virginia Energy Resources Inc. | CUR |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  |  |  |  |  | 100.00% |  |  |  |
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Entity Shares Issued Per Acquiree Share | shares |  |  |  |  |  | 0.26 |  |  |  |
Business Combination, Number of Common Stock Shares Acquired | shares |  |  |  |  |  | 9,439,857 |  |  |  |
Business Combination, Acquired Shares Converted To Common Stock | shares |  |  |  |  |  | 2,454,362 |  |  |  |
Virginia Energy Resources Inc. | Energy Fuels |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |
Business Combination, Shares Converted Into Common Stock | shares |  |  |  |  |  | 16,189,548 |  |  |  |
CUR | Energy Fuels |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  |  |  |  |  | 16.70% |  |  |  |

X
- Definition Business Combination, Acquired Shares Converted To Common Stock + References No definition available. + Details
Name: | efr_BusinessCombinationAcquiredSharesConvertedToCommonStock
Namespace Prefix: | efr_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Entity Shares Issued Per Acquiree Share + References No definition available. + Details
Name: | efr_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableEntitySharesIssuedPerAcquireeShare
Namespace Prefix: | efr_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Business Combination, Number of Common Stock Shares Acquired + References No definition available. + Details
Name: | efr_BusinessCombinationNumberOfCommonStockSharesAcquired
Namespace Prefix: | efr_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Business Combination, Shares Converted Into Common Stock + References No definition available. + Details
Name: | efr_BusinessCombinationSharesConvertedIntoCommonStock
Namespace Prefix: | efr_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Change in value of investments accounted at fair value + References No definition available. + Details
Name: | efr_ChangeInValueOfInvestmentsAccountedAtFairValue
Namespace Prefix: | efr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Convertible Note Receivable, Consideration Received + References No definition available. + Details
Name: | efr_ConvertibleNoteReceivableConsiderationReceived
Namespace Prefix: | efr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Convertible Note Receivable, Redeemed + References No definition available. + Details
Name: | efr_ConvertibleNoteReceivableRedeemed
Namespace Prefix: | efr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Convertible Note Receivable, Sales Commission + References No definition available. + Details
Name: | efr_ConvertibleNoteReceivableSalesCommission
Namespace Prefix: | efr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Convertible Note Receivable, Unpaid Accrued Interest + References No definition available. + Details
Name: | efr_ConvertibleNoteReceivableUnpaidAccruedInterest
Namespace Prefix: | efr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Convertible Notes Receivable, Sold + References No definition available. + Details
Name: | efr_ConvertibleNotesReceivableSold
Namespace Prefix: | efr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Notes Receivable, Fair Value Measurement Input + References No definition available. + Details
Name: | efr_NotesReceivableFairValueMeasurementInput
Namespace Prefix: | efr_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proceeds From Convertible Note Receivable + References No definition available. + Details
Name: | efr_ProceedsFromConvertibleNoteReceivable
Namespace Prefix: | efr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Sale Of Stock, Number Of Shares Available For Sale + References No definition available. + Details
Name: | efr_SaleOfStockNumberOfSharesAvailableForSale
Namespace Prefix: | efr_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Sale Of Stock, Shares Received Per Common Stock Share Issued + References No definition available. + Details
Name: | efr_SaleOfStockSharesReceivedPerCommonStockShareIssued
Namespace Prefix: | efr_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479328/805-10-50-2 + Details
Name: | us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-3 + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 14 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-14 + Details
Name: | us-gaap_ProceedsFromIssuanceOfCommonStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. + References No definition available. + Details
Name: | us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. + References No definition available. + Details
Name: | us-gaap_SaleOfStockPricePerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_OwnershipAxis=efr_IsoEnergyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputPriceVolatilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=efr_MeasurementInputYieldMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=efr_CURMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=efr_VirginiaEnergyResourcesIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=efr_EnergyFuelsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=efr_CURMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |