XML 49 R39.htm IDEA: XBRL DOCUMENT v3.24.2.u1

Note 8 - Related Party Transactions - Transaction Between Related Parties (Details) - CAD ($)	Jun. 30, 2024	Mar. 31, 2024
Current and former directors, officers and companies controlled by them [member]
Statement Line Items [Line Items]
Current and former directors, officers and companies controlled by them	$ 60,819	$ 86,980

X

- References

No definition available.

+ Details

Name:	fmst_Statement1LineItems
Namespace Prefix:	fmst_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	ifrs-full_AmountsPayableRelatedPartyTransactions
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	ifrs-full_CategoriesOfRelatedPartiesAxis=fmst_CurrentAndFormerDirectorsOfficersAndCompaniesControlledByThemMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: