XML 44 R34.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Note 7 - Capital Stock and Reserves - Fair Value of Stock Option Assumptions (Details) | 12 Months Ended
--- | ---
Mar. 31, 2024 CAD ($) $ / shares
Statement Line Items [Line Items] |
Fair value per option | $ | $ 5.42
Exercise price (in CAD per share) | $ / shares | $ 5.49
Expected life (years) | 3.5
Interest rate | 4.17%
Annualized volatility (based on historical volatility) | 108.00%
Dividend yield | 0.00%

X
- Definition The exercise price of share options granted. + References No definition available. + Details
Name: | fmst_ExercisePriceShareOptionsGranted
Namespace Prefix: | fmst_
Data Type: | dtr-types:perShareItemType
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
- References No definition available. + Details
Name: | ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_DescriptionOfOptionLifeShareOptionsGranted
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant