XML 123 R45.htm IDEA: XBRL DOCUMENT
v3.24.3

Note 12 - Subsequent Events (Details Textual) |  |  |  |  |  |  | 6 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 05, 2030 | Oct. 04, 2030 CAD ($) | Oct. 04, 2027 CAD ($) | Nov. 04, 2024 CAD ($) shares | Oct. 07, 2024 CAD ($) a shares | Oct. 04, 2024 CAD ($) shares | Sep. 30, 2024 CAD ($) | Mar. 31, 2024 CAD ($)
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Total borrowings | $ |  |  |  |  |  |  | $ 1,160,366 | $ 1,138,520
Athabasca properties [member] | Denison Mines Corp. [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Proportion of ownership interest in associate |  |  |  |  |  |  | 100.00% |
Hatchet Lake [member] | Denison Mines Corp. [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Proportion of ownership interest in associate |  |  |  |  |  |  | 70.15% |
New Foremost share [member] | Foremost warrant ]member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Class of warrant or right, number of securities called by each warrant or right 1 (in shares) |  |  |  | 1 |  |  |  |
Rio Grande common share [member] | Foremost warrant ]member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Class of warrant or right, number of securities called by each warrant or right 1 (in shares) |  |  |  | 2 |  |  |  |
Entering into significant commitments or contingent liabilities [member] | New Foremost share [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Number of shares per option (in shares) |  |  |  | 1 |  |  |  |
Entering into significant commitments or contingent liabilities [member] | Rio Grande common share [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Number of shares per option (in shares) |  |  |  | 1 |  |  |  |
Entering into significant commitments or contingent liabilities [member] | Foremost option [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Number of options to be transferred and exchanged |  |  |  | 0.9136 |  |  |  |
Number of options received in exchange (in shares) |  |  |  | 1 |  |  |  |
Entering into significant commitments or contingent liabilities [member] | Foremost option 2 [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Number of options to be transferred and exchanged |  |  |  | 0.0864 |  |  |  |
Entering into significant commitments or contingent liabilities [member] | Rio Grande options [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Number of options received in exchange (in shares) |  |  |  | 2 |  |  |  |
Entering into significant commitments or contingent liabilities [member] | Foremost RSU [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Number of units to be transferred and exchanged |  |  |  | 0.9136 |  |  |  |
Entering into significant commitments or contingent liabilities [member] | Foremost replacement RSU [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Number of units received in exchange (in shares) |  |  |  | 1 |  |  |  |
Entering into significant commitments or contingent liabilities [member] | Foremost RSU 1 [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Number of units to be transferred and exchanged |  |  |  | 0.0864 |  |  |  |
Entering into significant commitments or contingent liabilities [member] | Rio Grande RSU [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Number of units received in exchange (in shares) |  |  |  | 2 |  |  |  |
Entering into significant commitments or contingent liabilities [member] | Rio Grande Resources Ltd [member] | Barnard promissory note [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Borrowings, interest rate |  |  |  | 8.95% |  |  |  |
Entering into significant commitments or contingent liabilities [member] | Rio Grande Resources Ltd [member] | Foremost promissory note [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Total borrowings | $ |  |  |  | $ 520,000 |  |  |  |
Entering into significant commitments or contingent liabilities [member] | Rio Grande Resources Ltd [member] | Key management personnel of entity or parent [member] | Barnard promissory note [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Total borrowings | $ |  |  |  | $ 677,450 |  |  |  |
Borrowings, interest rate |  |  |  | 8.95% |  |  |  |
Major purchases of assets [member] | Denison Mines Corp. [member] | Foremost [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Proportion of ownership interest in associate |  |  |  |  | 19.95% |  |  |
Major purchases of assets [member] | Athabasca properties [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Proportion of ownership interest in associate |  | 19.00% | 31.00% |  |  | 20.00% |  |
Number of uranium exploration properties |  |  |  |  | 10 |  |  |
Area of land (Acre) | a |  |  |  |  | 330,000 |  |  |
Increase (decrease) in number of shares outstanding, acquisitions (in shares) |  |  |  |  |  | 1,369,810 |  |
Increase (decrease) through acquisition of subsidiary, equity | $ |  |  |  |  |  | $ 5,263,209 |  |
Payments for exploration and evaluation expenses | $ |  | $ 2,500,000 | $ 2,000,000 |  |  |  |  |
Capital commitments | $ |  | $ 1,200,000 | $ 8,000,000 |  |  |  |  |
Increase (decrease) in number of shares outstanding, advisory fees (in shares) |  |  |  |  | 425,682 |  |  |
Increase (decrease) through advisory fees, equity | $ |  |  |  |  | $ 1,670,119 |  |  |
Major purchases of assets [member] | Athabasca properties [member] | Denison Mines Corp. [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Proportion of ownership interest in associate | 51.00% |  |  |  |  |  |  |
Major purchases of assets [member] | Athabasca properties [member] | Top of range [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Proportion of ownership interest in associate |  |  |  |  | 70.00% |  |  |
Major purchases of assets [member] | Hatchet Lake [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Proportion of ownership interest in associate |  | 15.22% | 21.75% |  |  | 14.03% |  |
Proportion of ownership interest in associate above current interest |  |  |  |  | 70.00% |  |  |
Major purchases of assets [member] | Hatchet Lake [member] | Top of range [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Proportion of ownership interest in associate |  |  |  |  | 51.00% |  |  |
Sierra Gold & Silver Ltd. [member] | Entering into significant commitments or contingent liabilities [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Proportion of voting rights held in subsidiary |  |  |  | 100.00% |  |  |  |
Sierra Gold & Silver Ltd. [member] | Entering into significant commitments or contingent liabilities [member] | Rio Grande Resources Ltd [member] |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |
Denominator of formula for shares issued (in shares) |  |  |  | 0.8005 |  |  |  |
Numerator of formula for shares issued (in shares) |  |  |  | 2 |  |  |  |

X
- Definition The total area of land. + References No definition available. + Details
Name: | fmst_AreaOfLand1
Namespace Prefix: | fmst_
Data Type: | dtr-types:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares. + References No definition available. + Details
Name: | fmst_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight1
Namespace Prefix: | fmst_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The denominator for the formula used to calculate the number of shares needed to be issued. + References No definition available. + Details
Name: | fmst_DenominatorOfFormulaForSharesIssued
Namespace Prefix: | fmst_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The increase (decrease) in the number of shares outstanding from acquisitions. + References No definition available. + Details
Name: | fmst_IncreaseDecreaseInNumberOfSharesOutstandingAcquisitions
Namespace Prefix: | fmst_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The increase (decrease) in the number of shares outstanding from advisory fees. + References No definition available. + Details
Name: | fmst_IncreaseDecreaseInNumberOfSharesOutstandingAdvisoryFees
Namespace Prefix: | fmst_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The increase (decrease) in equity resulting from the payment of advisory fees. + References No definition available. + Details
Name: | fmst_IncreaseDecreaseThroughAdvisoryFeesEquity
Namespace Prefix: | fmst_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The number of options received as the result of an exchange. + References No definition available. + Details
Name: | fmst_NumberOfOptionsReceivedInExchange
Namespace Prefix: | fmst_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of options to be transferred and exchanged. + References No definition available. + Details
Name: | fmst_NumberOfOptionsToBeTransferredAndExchanged
Namespace Prefix: | fmst_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of shares per option. + References No definition available. + Details
Name: | fmst_NumberOfSharesPerOption
Namespace Prefix: | fmst_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of units received after the exchange. + References No definition available. + Details
Name: | fmst_NumberOfUnitsReceivedInExchange
Namespace Prefix: | fmst_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of units to be transferred and exchanged. + References No definition available. + Details
Name: | fmst_NumberOfUnitsToBeTransferredAndExchanged
Namespace Prefix: | fmst_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of uranium exploration properties. + References No definition available. + Details
Name: | fmst_NumberOfUraniumExplorationProperties
Namespace Prefix: | fmst_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition This value, multiplied by the number of Foremost shares issued and outstanding at the effective table, represents the numerator for the formula for shares issued. + References No definition available. + Details
Name: | fmst_NumeratorOfFormulaForSharesIssued
Namespace Prefix: | fmst_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Proportion of ownership interest in associate above the current interest. + References No definition available. + Details
Name: | fmst_ProportionOfOwnershipInterestInAssociateAboveCurrentInterest
Namespace Prefix: | fmst_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | fmst_Statement1LineItems
Namespace Prefix: | fmst_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of outstanding funds that the entity is obligated to repay. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_Borrowings
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_7&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_BorrowingsInterestRate
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of future capital expenditures that the entity is committed to make. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_CapitalCommitments
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The increase (decrease) in equity resulting from the acquisition of subsidiaries. [Refer: Total for all subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 106 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_106_d&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow for expenses incurred by an entity in connection with the exploration for, and evaluation of, mineral resources before the technical feasibility and commercial viability of extracting a mineral resource are demonstrable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2024-01-01 -Paragraph 14 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_14&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_PaymentsForExplorationAndEvaluationExpenses
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The proportion of ownership interest in an associate attributable to the entity. [Refer: Total for all associates [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 21 -Subparagraph a -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_21_a_iv&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInAssociate
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The proportion of the voting rights in a subsidiary held by the entity. [Refer: Total for all subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 19B -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_19B_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ProportionOfVotingPowerHeldInSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=fmst_AthabascaPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=fmst_HatchetLakeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=fmst_NewForemostShareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfEntitysOwnEquityInstrumentsAxis=fmst_ForemostWarrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=fmst_RioGrandeCommonShareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=ifrs-full_EnteringIntoSignificantCommitmentsOrContingentLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=fmst_ForemostOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=fmst_ForemostOption2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=fmst_RioGrandeOptionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=fmst_ForemostRsuMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=fmst_ForemostReplacementRsuMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=fmst_ForemostRsu1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=fmst_RioGrandeRsuMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CounterpartiesAxis=fmst_RioGrandeResourcesLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=fmst_BarnardPromissoryNoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=fmst_ForemostPromissoryNoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=ifrs-full_KeyManagementPersonnelOfEntityOrParentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=ifrs-full_MajorPurchasesOfAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=fmst_ForemostMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=fmst_SierraGoldSilverLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |