XML 128 R70.htm IDEA: XBRL DOCUMENT
v3.24.1

Short-term Loans - Guarantee (Details) | Dec. 31, 2023
--- | ---
Mr. Liang Chou Chen [Member] | Foremost Groups Ltd. [Member] |
Short-Term Debt [Line Items] |
Ownership percentage (as a percent) | 49.89%

X
- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ShortTermDebtLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=fgi_Mr.LiangChouChenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=fgi_ForemostGroupsLtd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |