XML 47 R37.htm IDEA: XBRL DOCUMENT
v3.22.1

Assets Held for Sale - Additional Information (Details) | 3 Months Ended
--- | ---
Mar. 31, 2022 crane
Disposal Group, Held-for-sale, Not Discontinued Operations |
Long Lived Assets Held-for-sale [Line Items] |
Number of cranes | 1

X
- Definition Number Of Cranes + References No definition available. + Details
Name: | gifi_NumberOfCranes
Namespace Prefix: | gifi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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_LongLivedAssetsHeldForSaleLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DisposalGroupClassificationAxis=us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |