XML 57 R46.htm IDEA: XBRL DOCUMENT
v3.25.3

INTANGIBLE ASSETS (Details Textual) - USD ($) $ in Millions | Sep. 28, 2025 | Dec. 29, 2024
--- | --- | ---
Goodwill and Intangible Assets Disclosure [Abstract] |  |
Intangible assets, accumulated amortization | $ 5.5 | $ 5.1

X
- Definition Intangible Assets, Accumulated Amortization + References No definition available. + Details
Name: | bgsf_IntangibleAssetsAccumulatedAmortization
Namespace Prefix: | bgsf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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