XML 46 R35.htm IDEA: XBRL DOCUMENT v3.19.1

Loans and Allowance for Loan Losses (Details 2) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	$ 1,172,272	$ 1,128,705
Commercial loans [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	1,172,272	1,128,705
Commercial loans [Member] | Owner occupied RE [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	386,256	367,018
Commercial loans [Member] | Non-owner occupied RE [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	423,953	404,296
Commercial loans [Member] | Construction [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	80,561	84,411
Commercial loans [Member] | Business [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	281,502	272,980
Commercial loans [Member] | Pass [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	1,154,394	1,115,196
Commercial loans [Member] | Pass [Member] | Owner occupied RE [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	382,553	363,621
Commercial loans [Member] | Pass [Member] | Non-owner occupied RE [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	415,897	400,266
Commercial loans [Member] | Pass [Member] | Construction [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	80,494	84,411
Commercial loans [Member] | Pass [Member] | Business [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	275,450	266,898
Commercial loans [Member] | Special mention [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	7,790	3,385
Commercial loans [Member] | Special mention [Member] | Owner occupied RE [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	1,495	296
Commercial loans [Member] | Special mention [Member] | Non-owner occupied RE [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	4,261	118
Commercial loans [Member] | Special mention [Member] | Construction [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	67
Commercial loans [Member] | Special mention [Member] | Business [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	1,967	2,971
Commercial loans [Member] | Substandard [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	10,088	10,124
Commercial loans [Member] | Substandard [Member] | Owner occupied RE [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	2,208	3,101
Commercial loans [Member] | Substandard [Member] | Non-owner occupied RE [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	3,795	3,912
Commercial loans [Member] | Substandard [Member] | Construction [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans
Commercial loans [Member] | Substandard [Member] | Business [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	4,085	3,111
Commercial loans [Member] | Doubtful [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans
Commercial loans [Member] | Doubtful [Member] | Owner occupied RE [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans
Commercial loans [Member] | Doubtful [Member] | Non-owner occupied RE [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans
Commercial loans [Member] | Doubtful [Member] | Construction [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans
Commercial loans [Member] | Doubtful [Member] | Business [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans

X

- References

No definition available.

+ Details

Name:	sfst_OutstandingLoansByRiskCategoryAbstract
Namespace Prefix:	sfst_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount, before allowance and fees, of loans and leases receivable. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522

+ Details

Name:	us-gaap_LoansAndLeasesReceivableBeforeFeesGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CommercialLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=sfst_OwnerOccupiedReMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=sfst_NonOwnerOccupiedReMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=sfst_BusinessLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_DoubtfulMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: