XML 31 R20.htm IDEA: XBRL DOCUMENT v3.19.1

Loans and Allowance for Loan Losses (Tables)

3 Months Ended

Mar. 31, 2019

Financing Receivable, Allowance for Credit Losses [Line Items]

Summary of composition of loan portfolio

		March 31, 2019						December 31, 2018
(dollars in thousands)		Amount				% of Total		Amount				% of Total
Commercial
Owner occupied RE		$	386,256			22.3%		$	367,018			21.9%
Non-owner occupied RE			423,953			24.4%			404,296			24.1%
Construction			80,561			4.7%			84,411			5.0%
Business			281,502			16.2%			272,980			16.3%
Total commercial loans			1,172,272			67.6%			1,128,705			67.3%
Consumer
Real estate			330,538			19.1%			320,943			19.1%
Home equity			167,146			9.6%			165,937			9.9%
Construction			39,838			2.3%			37,925			2.3%
Other			24,170			1.4%			23,822			1.4%
Total consumer loans			561,692			32.4%			548,627			32.7%
Total gross loans, net of deferred fees			1,733,964			100.0%			1,677,332			100.0%
Less—allowance for loan losses			(16,051	)					(15,762	)
Total loans, net		$	1,717,913					$	1,661,570

Summary of loan maturity distribution by type and related interest rate

		March 31, 2019
					After one
		One year			but within		After five
(dollars in thousands)		or less			five years		years		Total
Commercial
Owner occupied RE		$	21,648		165,318		199,290			386,256
Non-owner occupied RE			41,795		244,292		137,866			423,953
Construction			18,526		35,798		26,237			80,561
Business			80,049		141,048		60,405			281,502
Total commercial loans			162,018		586,456		423,798			1,172,272
Consumer
Real estate			24,754		73,030		232,754			330,538
Home equity			8,127		26,423		132,596			167,146
Construction			15,122		877		23,839			39,838
Other			7,473		12,121		4,576			24,170
Total consumer loans			55,476		112,451		393,765			561,692
Total gross loans, net of deferred fees		$	217,494		698,907		817,563			1,733,964
Loans maturing after one year with:
Fixed interest rates									$	1,155,862
Floating interest rates										360,608
		December 31, 2018
					After one
			One year		but within		After five
(dollars in thousands)			or less		five years		years			Total
Commercial
Owner occupied RE		$	20,839		165,436		180,743			367,018
Non-owner occupied RE			43,000		227,454		133,842			404,296
Construction			22,941		33,045		28,425			84,411
Business			80,672		128,911		63,397			272,980
Total commercial loans			167,452		554,846		406,407			1,128,705
Consumer
Real estate			29,301		70,467		221,175			320,943
Home equity			8,867		24,618		132,452			165,937
Construction			16,006		1,646		20,273			37,925
Other			7,681		11,253		4,888			23,822
Total consumer			61,855		107,984		378,788			548,627
Total gross loan, net of deferred fees		$	229,307		662,830		785,195			1,677,332
Loans maturing after one year with :
Fixed interest rates									$	1,100,854
Floating interest rates										347,171

Summary of nonperforming assets, including nonaccruing TDRs

(dollars in thousands)		March 31, 2019			December 31, 2018
Commercial
Owner occupied RE		$	-		-
Non-owner occupied RE			403		210
Construction			-		-
Business			72		81
Consumer
Real estate			1,840		1,980
Home equity			1,249		1,006
Construction			-		-
Other			-		12
Nonaccruing troubled debt restructurings			2,485		2,541
Total nonaccrual loans, including nonaccruing TDRs			6,049		5,830
Other real estate owned			-		-
Total nonperforming assets		$	6,049		5,830
Nonperforming assets as a percentage of:
Total assets			0.30%		0.31%
Gross loans			0.35%		0.35%
Total loans over 90 days past due			982		458
Loans over 90 days past due and still accruing			-		-
Accruing troubled debt restructurings		$	6,839		6,742

Summary of key information for impaired loans

					March 31, 2019
					Recorded investment
							Impaired loans
		Unpaid					with related		Related
		Principal			Impaired		allowance for		allowance for
(dollars in thousands)		Balance			loans		loan losses		loan losses
Commercial
Owner occupied RE		$	2,816		2,751		449		75
Non-owner occupied RE			2,977		2,953		1,773		546
Construction			-		-		-		-
Business			3,242		2,615		1,998		946
Total commercial			9,035		8,319		4,220		1,567
Consumer
Real estate			2,755		2,748		1,264		414
Home equity			1,704		1,665		268		95
Construction			-		-		-		-
Other			156		156		156		18
Total consumer			4,615		4,569		1,688		527
Total		$	13,650		12,888		5,908		2,094
					December 31, 2018
					Recorded investment
							Impaired loans
			Unpaid				with related		Related
			Principal		Impaired		allowance for		allowance for
(dollars in thousands)			Balance		loans		loan losses		loan losses
Commercial
Owner occupied RE		$	2,827		2,762		451		75
Non-owner occupied RE			3,321		2,807		2,204		558
Construction			-		-		-		-
Business			3,745		2,520		2,005		895
Total commercial			9,893		8,089		4,660		1,528
Consumer
Real estate			2,993		2,892		1,398		456
Home equity			1,935		1,421		-		-
Construction			-		-		-		-
Other			170		170		170		30
Total consumer			5,098		4,483		1,568		486
Total		$	14,991		12,572		6,228		2,014

Summary of average recorded investment and interest income recognized on impaired loans

		Three months ended					Three months ended				Year ended
		March 31, 2019					March 31, 2018				December 31, 2018
		Average			Recognized		Average		Recognized		Average		Recognized
		recorded			interest		recorded		interest		recorded		interest
(dollars in thousands)		investment			income		investment		income		investment		income
Commercial
Owner occupied RE		$	2,757		30		2,231		17		2,784		142
Non-owner occupied RE			2,977		49		3,758		50		2,860		174
Construction			-		-		-		-		-		-
Business			2,567		40		1,886		21		2,883		162
Total commercial			8,301		119		7,875		88		8,527		478
Consumer
Real estate			2,761		25		2,814		41		2,930		151
Home equity			1,677		30		2,203		28		1,453		99
Construction			-		-		-		-		-		-
Other			157		1		168		1		174		5
Total consumer			4,595		56		5,185		70		4,557		255
Total		$	12,896		175		13,060		158		13,084		733

Summary of allowance for loan losses by commercial and consumer portfolio segments

		Three months ended March 31, 2019
		Commercial										Consumer
		Owner			Non-owner
		occupied			occupied							Real			Home
(dollars in thousands)		RE			RE		Construction			Business		Estate			equity		Construction		Other			Total
Balance, beginning of period		$	2,726		3,811		615			3,616		3,081			1,348		275		290			15,762
Provision for loan losses			57		74		(43	)		171		(56	)		61		7		29			300
Loan charge-offs			-		-		-			-		-			-		-		(41	)		(41	)
Loan recoveries			-		1		-			9		16			1		-		3			30
Net loan charge-offs			-		1		-			9		16			1		-		(38	)		(11	)
Balance, end of period		$	2,783		3,886		572			3,796		3,041			1,410		282		281			16,051
Net charge-offs to average loans (annualized)																						0.00%
Allowance for loan losses to gross loans																						0.93%
Allowance for loan losses to nonperforming loans																						265.35%

		Three months ended March 31, 2018
		Commercial										Consumer
		Owner			Non-owner
		occupied			occupied							Real			Home
(dollars in thousands)		RE			RE		Construction		Business			Estate			equity			Construction		Other			Total
Balance, beginning of period		$	2,534		3,230		325		3,848			3,495			1,600			210		281			15,523
Provision for loan losses			146		135		90		(294	)		(105	)		451			46		31			500
Loan charge-offs			-		-		-		(119	)		-			(140	)		-		(34	)		(293	)
Loan recoveries			-		1		-		118			1			-			-		2			122
Net loan charge-offs			-		1		-		(1	)		1			(140	)		-		(32	)		(171	)
Balance, end of period		$	2,680		3,366		415		3,553			3,391			1,911			256		280			15,852
Net charge-offs to average loans (annualized)																							0.05%
Allowance for loan losses to gross loans																							1.09%
Allowance for loan losses to nonperforming loans																							217.92%

Summary of allowance for loan losses and recorded investment in loans by impairment methodology

		March 31, 2019
		Allowance for loan losses							Recorded investment in loans
(dollars in thousands)		Commercial			Consumer		Total		Commercial		Consumer		Total
Individually evaluated		$	1,567		527		2,094		8,319		4,569		12,888
Collectively evaluated			9,470		4,487		13,957		1,163,953		557,123		1,721,076
Total		$	11,037		5,014		16,051		1,172,272		561,692		1,733,964
		December 31, 2018
		Allowance for loan losses							Recorded investment in loans
(dollars in thousands)		Commercial			Consumer		Total		Commercial		Consumer		Total
Individually evaluated		$	1,528		486		2,014		8,089		4,483		12,572
Collectively evaluated			9,240		4,508		13,748		1,120,616		544,144		1,664,760
Total		$	10,768		4,994		15,762		1,128,705		548,627		1,677,332

Commercial [Member]

Financing Receivable, Allowance for Credit Losses [Line Items]

Summary of breakdown of outstanding loans by risk category

		March 31, 2019
		Owner			Non-owner
(dollars in thousands)		occupied RE			occupied RE		Construction		Business		Total
Pass		$	382,553		415,897		80,494		275,450		1,154,394
Special mention			1,495		4,261		67		1,967		7,790
Substandard			2,208		3,795		-		4,085		10,088
Doubtful			-		-		-		-		-
		$	386,256		423,953		80,561		281,502		1,172,272
		December 31, 2018
		Owner			Non-owner
(dollars in thousands)		occupied RE			occupied RE		Construction		Business		Total
Pass		$	363,621		400,266		84,411		266,898		1,115,196
Special mention			296		118		-		2,971		3,385
Substandard			3,101		3,912		-		3,111		10,124
Doubtful			-		-		-		-		-
		$	367,018		404,296		84,411		272,980		1,128,705

Summary of outstanding commercial and consumer loans which include loans on nonaccrual by past due status

		March 31, 2019
		Owner			Non-owner
(dollars in thousands)		occupied RE			occupied RE		Construction		Business		Total
Current		$	386,146		423,953		80,561		281,430		1,172,090
30-59 days past due			110		-		-		-		110
60-89 days past due			-		-		-		-		-
Greater than 90 Days			-		-		-		72		72
		$	386,256		423,953		80,561		281,502		1,172,272
		December 31, 2018
		Owner			Non-owner
		occupied RE			occupied RE		Construction		Business		Total
Current		$	367,018		404,179		84,411		272,864		1,128,472
30-59 days past due			-		117		-		36		153
60-89 days past due			-		-		-		-		-
Greater than 90 Days			-		-		-		80		80
		$	367,018		404,296		84,411		272,980		1,128,705

Consumer [Member]

Financing Receivable, Allowance for Credit Losses [Line Items]

Summary of breakdown of outstanding loans by risk category

		March 31, 2019
(dollars in thousands)		Real estate			Home equity		Construction		Other		Total
Pass		$	324,421		163,989		39,838		24,007		552,255
Special mention			2,428		415		-		127		2,970
Substandard			3,689		2,742		-		36		6,467
Doubtful			-		-		-		-		-
		$	330,538		167,146		39,838		24,170		561,692
		December 31, 2018
(dollars in thousands)		Real estate			Home equity		Construction		Other		Total
Pass		$	314,586		162,626		37,925		23,586		538,723
Special mention			1,792		864		-		139		2,795
Substandard			4,565		2,447		-		97		7,109
Doubtful			-		-		-		-		-
		$	320,943		165,937		37,925		23,822		548,627

Summary of outstanding commercial and consumer loans which include loans on nonaccrual by past due status

		March 31, 2019
(dollars in thousands)		Real estate			Home equity		Construction		Other		Total
Current		$	328,378		166,632		39,838		24,140		558,988
30-59 days past due			656		246		-		30		932
60-89 days past due			862		-		-		-		862
Greater than 90 Days			642		268		-		-		910
		$	330,538		167,146		39,838		24,170		561,692
									December 31, 2018
(dollars in thousands)			Real estate		Home equity		Construction		Other		Total
Current		$	317,267		165,727		37,925		23,603		544,522
30-59 days past due			2,555		30		-		106		2,691
60-89 days past due			923		-		-		113		1,036
Greater than 90 Days			198		180		-		-		378
		$	320,943		165,937		37,925		23,822		548,627

X

- Definition

Impairment methodology for credit losses on financing receivables.

+ References

No definition available.

+ Details

Name:	sfst_ImpairmentMethodologyForCreditLossesOnFinancingReceivablesTableTextBlock
Namespace Prefix:	sfst_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of loan maturity distribution by type.

+ References

No definition available.

+ Details

Name:	sfst_LoanMaturityDistributionByTypeAndRelatedInterestRateTableTextBlock
Namespace Prefix:	sfst_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Outstanding commercial and consumer loans by risk category.

+ References

No definition available.

+ Details

Name:	sfst_OutstandingLoansByRiskCategoryTableTextBlock
Namespace Prefix:	sfst_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Summary of allowance for loan losses by commercial and consumer portfolio segments.

+ References

No definition available.

+ Details

Name:	sfst_SummaryOfAllowanceForLoanLossesByCommercialAndConsumerPortfolioSegmentsTableTextBlock
Namespace Prefix:	sfst_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Summary of average recorded investment in impaired loans and the amount of interest income.

+ References

No definition available.

+ Details

Name:	sfst_SummaryOfAverageRecordedInvestmentInImpairedLoansAndAmountOfInterestIncomeTableTextBlock
Namespace Prefix:	sfst_
Data Type:	nonnum:textBlockItemType
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_FinancingReceivableAllowanceForCreditLossesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of impaired financing receivables.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524

+ Details

Name:	us-gaap_ImpairedFinancingReceivablesTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of financing receivables that are past due but not impaired, financing receivables that are 90 days past due and still accruing, and financing receivables on nonaccrual status.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7A
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953401-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524

+ Details

Name:	us-gaap_PastDueFinancingReceivablesTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3,4)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of nonaccrual and past due financing receivables (such as loans and trade receivables), including: (a) the recorded investment in loans and trade receivables, if applicable, on nonaccrual status as of each balance sheet date (b) the recorded investment in loans and trade receivables, if applicable, past due 90 days or more and still accruing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524

+ Details

Name:	us-gaap_ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Details

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

X

- Details

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