XML 38 R27.htm IDEA: XBRL DOCUMENT
v3.23.3

Convertible Note Derivative (Tables) | 3 Months Ended
--- | ---
Sep. 30, 2023
Convertible Note Derivative [Abstract] |
Schedule of Components of Changes to Fair Value of Convertible Note Derivative | The components of changes to the fair value of the Convertible Note Derivative are summarized below.
|  | Three months ended September 30, 2022 |
|  | (in thousands) |
Convertible note derivative (asset) liability — beginning of period |  | $ | — |
Additions |  |  | 24,896 |
Fair value adjustment (gain) loss |  |  | (13,909 | )
Convertible note derivative (asset) liability — end of period |  | $ | 10,987 |

X
- Definition Convertible note derivative. + References No definition available. + Details
Name: | feam_ConvertibleNoteDerivativeAbstract
Namespace Prefix: | feam_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of derivative liabilities at fair value. + References No definition available. + Details
Name: | us-gaap_ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration