XML 83 R66.htm IDEA: XBRL DOCUMENT
v3.25.1

Stockholders' Equity, Warrants (Details) - $ / shares | 1 Months Ended |  |
--- | --- | --- | ---
Nov. 30, 2024 | Apr. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2024 | Dec. 31, 2023
Warrants and Rights Note Disclosure [Abstract] |  |  |  |  |
Number of warrants outstanding (in shares) |  |  |  | 6,070,708 | 11,912,435
Warrants expired (in shares) | 5,805,083 | 4,762 | 31,882 |  |
March 2024 [Member] |  |  |  |  |
Warrants and Rights Note Disclosure [Abstract] |  |  |  |  |
Expiration date |  |  |  | Mar. 01, 2024 |
Number of warrants outstanding (in shares) |  |  |  | 0 | 31,882
Exercise price (in dollars per share) |  |  |  | $ 0 | $ 31.5
April 2024 [Member] |  |  |  |  |
Warrants and Rights Note Disclosure [Abstract] |  |  |  |  |
Expiration date |  |  |  | Apr. 01, 2024 |
Number of warrants outstanding (in shares) |  |  |  | 0 | 4,762
Exercise price (in dollars per share) |  |  |  | $ 0 | $ 31.5
November 2024 [Member] |  |  |  |  |
Warrants and Rights Note Disclosure [Abstract] |  |  |  |  |
Expiration date |  |  |  | Nov. 01, 2024 |
Number of warrants outstanding (in shares) |  |  |  | 0 | 5,805,083
Exercise price (in dollars per share) |  |  |  | $ 0 | $ 1.48
April 2025 [Member] |  |  |  |  |
Warrants and Rights Note Disclosure [Abstract] |  |  |  |  |
Expiration date |  |  |  | Apr. 01, 2025 |
Number of warrants outstanding (in shares) |  |  |  | 55,177 | 55,177
Exercise price (in dollars per share) |  |  |  | $ 7.25 | $ 7.25
December 2026 [Member] |  |  |  |  |
Warrants and Rights Note Disclosure [Abstract] |  |  |  |  |
Expiration date |  |  |  | Dec. 01, 2026 |
Number of warrants outstanding (in shares) |  |  |  | 128,934 | 128,934
Exercise price (in dollars per share) |  |  |  | $ 9.45 | $ 9.45
January 2027 [Member] |  |  |  |  |
Warrants and Rights Note Disclosure [Abstract] |  |  |  |  |
Expiration date |  |  |  | Jan. 01, 2027 |
Number of warrants outstanding (in shares) |  |  |  | 12,705 | 12,705
Exercise price (in dollars per share) |  |  |  | $ 9.45 | $ 9.45
April 2028 [Member] |  |  |  |  |
Warrants and Rights Note Disclosure [Abstract] |  |  |  |  |
Expiration date |  |  |  | Apr. 01, 2028 |
Number of warrants outstanding (in shares) |  |  |  | 68,809 | 68,809
Exercise price (in dollars per share) |  |  |  | $ 1.53 | $ 1.53
November 2028 [Member] |  |  |  |  |
Warrants and Rights Note Disclosure [Abstract] |  |  |  |  |
Expiration date |  |  |  | Nov. 01, 2028 |
Number of warrants outstanding (in shares) |  |  |  | 5,805,083 | 5,805,083
Exercise price (in dollars per share) |  |  |  | $ 1.18 | $ 1.18

X
- Definition Number of warrants or rights expired. + References No definition available. + Details
Name: | femy_ClassOfWarrantOrRightExpired
Namespace Prefix: | femy_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-3 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of warrants or rights outstanding. + References No definition available. + Details
Name: | us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Expiration date of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in YYYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_WarrantsAndRightsOutstandingMaturityDate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=femy_WarrantsOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=femy_WarrantsTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=femy_WarrantsThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=femy_WarrantsFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=femy_WarrantsFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=femy_WarrantsSixMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=femy_WarrantsSevenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=femy_WarrantsEightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |