XML 100 R84.htm IDEA: XBRL DOCUMENT
v3.22.4

Regulatory Matters (Details) | 12 Months Ended
--- | ---
Dec. 31, 2022
Regulatory Matters Abstract |
Capital conservation percentage | 2.50%

X
- References No definition available. + Details
Name: | sbfg_CapitalConservationPercentage
Namespace Prefix: | sbfg_
Data Type: | dtr:percentItemType
Balance Type: | na
Period Type: | duration

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