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Note 4 - Leases (Tables) | 9 Months Ended
--- | ---
Dec. 31, 2023
Statement Line Items [Line Items] |
Disclosure of lease obligation [text block] |
Lease obligation, March 31, 2022 |  | $ | 96,340 |
Interest expense |  |  | 9,673 |
Payments made |  |  | (71,627 | )
Lease obligation, March 31, 2023 |  |  | 34,386 |
Interest expense |  |  | 1,427 |
Payments made |  |  | (35,813 | )
Lease obligation, December 31, 2023 |  |  | - |
Current portion |  |  | - |
Non-current portion |  | $ | - |
Disclosure of net investment in sublease [text block] |
Net investment in sublease, March 31, 2022 |  | $ | 88,360 |
Finance income |  |  | 8,879 |
Payments received |  |  | (65,702 | )
Net investment in sublease, March 31, 2023 |  |  | 31,537 |
Finance income |  |  | 1,314 |
Payments received |  |  | (32,851 | )
Net investment in sublease, December 31, 2023 |  |  | - |
Current portion |  |  | - |
Non-current portion |  | $ | - |

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- Definition The disclosure for lease obligation. + References No definition available. + Details
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- Definition The disclosure of net investment in sublease. + References No definition available. + Details
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Namespace Prefix: | fmst_
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Balance Type: | na
Period Type: | duration

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