XML 127 R114.htm IDEA: XBRL DOCUMENT
v3.21.1

17) Fair Value of Financial Instruments: Fair Value Assets Measured on a Nonrecurring Basis (Details) - USD ($) | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Impaired mortgage loans held for investment | $ 1,297,356 | $ 1,302,025
Impaired real estate held for investment | 4,249,000 | 8,375,884
Total assets accounted for at fair value on a nonrecurring basis | 5,546,356 | 9,677,909
Fair Value, Inputs, Level 1 |  |
Impaired mortgage loans held for investment | 0 | 0
Impaired real estate held for investment | 0 | 0
Total assets accounted for at fair value on a nonrecurring basis | 0 | 0
Fair Value, Inputs, Level 2 |  |
Impaired mortgage loans held for investment | 0 | 0
Impaired real estate held for investment | 0 | 0
Total assets accounted for at fair value on a nonrecurring basis | 0 | 0
Fair Value, Inputs, Level 3 |  |
Impaired mortgage loans held for investment | 1,297,356 | 1,302,025
Impaired real estate held for investment | 4,249,000 | 8,375,884
Total assets accounted for at fair value on a nonrecurring basis | $ 5,546,356 | $ 9,677,909

X
- Definition Represents the monetary amount of Assets, Fair Value Disclosure, Nonrecurring, as of the indicated date. + References No definition available. + Details
Name: | snfc_AssetsFairValueDisclosureNonrecurring2
Namespace Prefix: | snfc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the monetary amount of Impaired real estate held for investment, as of the indicated date. + References No definition available. + Details
Name: | snfc_ImpairedRealEstateHeldForInvestment
Namespace Prefix: | snfc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column G)) -URI http://asc.fasb.org/extlink&oid=120402547&loc=d3e617274-123014 + Details
Name: | us-gaap_MortgageLoansOnRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |