Name:	sfdl_FinancingReceivableRecordedInvestmentInNonAccrualStatusIncreaseDecrease
Namespace Prefix:	sfdl_
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Increase (decrease) during the period indicated, in the percentage of Financing Receivable Recorded Investment in Non-accrual Status (percent of gross loans held for investment, net of deferred fees, loans in process and loans held for sale).

No definition available.

Name:	sfdl_FinancingReceivableRecordedInvestmentInNonAccrualStatusPercentIncreaseDecrease
Namespace Prefix:	sfdl_
Data Type:	num:percentItemType
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Period Type:	duration

Loans in non-accrual status, as a percentage of total loans, net of deferred fees, loans in process and loans held for sale.

No definition available.

Name:	sfdl_FinancingReceivableRecordedInvestmentNonaccrualStatusPercentage
Namespace Prefix:	sfdl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Amount of financing receivable on nonaccrual status.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447

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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.

No definition available.

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Period Type:	duration

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