XML 59 R47.htm IDEA: XBRL DOCUMENT
v3.21.2

Loans Held For Sale: Schedule of Mortgage Fee Income for Loans Held for Sale (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |
Mortgage fee income | $ 65,157,813 | $ 73,368,333 | $ 138,156,425 | $ 113,650,094
Loans Held For Sale 1 [Member] |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |
Loan fees | 9,154,621 | 15,226,535 | 18,694,577 | 22,940,750
Interest income | 2,188,380 | 2,601,605 | 4,500,181 | 4,282,063
Secondary gains | 56,020,876 | 49,422,815 | 124,459,809 | 77,269,683
Change in fair value of loan commitments | (482,863) | 5,278,100 | (168,397) | 8,553,132
Change in fair value of loans held for sale | (1,114,632) | 2,363,713 | (8,060,513) | 2,742,010
Provision for loan loss reserve | (608,569) | (1,524,435) | (1,269,232) | (2,137,544)
Mortgage fee income | $ 65,157,813 | $ 73,368,333 | $ 138,156,425 | $ 113,650,094

X
- Definition Represents the monetary amount of Change in fair value of loan commitments, during the indicated time period. + References No definition available. + Details
Name: | snfc_ChangeInFairValueOfLoanCommitments
Namespace Prefix: | snfc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the monetary amount of Change in fair value of loans held for sale, during the indicated time period. + References No definition available. + Details
Name: | snfc_ChangeInFairValueOfLoanHeldForSale
Namespace Prefix: | snfc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the monetary amount of Loan fees, during the indicated time period. + References No definition available. + Details
Name: | snfc_LoanFees
Namespace Prefix: | snfc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | snfc_MortgageFeeIncome
Namespace Prefix: | snfc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the monetary amount of Secondary gains, during the indicated time period. + References No definition available. + Details
Name: | snfc_SecondaryGains
Namespace Prefix: | snfc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of interest income and other income recognized during the period. Included in this element is interest derived from investments in debt securities, cash and cash equivalents, and other investments which reflect the time value of money or transactions in which the payments are for the use or forbearance of money and other income from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business). + References No definition available. + Details
Name: | us-gaap_InterestAndOtherIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of expense related to estimated loss from loan and lease transactions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_ProvisionForLoanAndLeaseLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=snfc_LoansHeldForSale1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |