XML 78 R66.htm IDEA: XBRL DOCUMENT
v3.22.1

Schedule of Credit Risk of Mortgage Loans Based on Performance Status (Details) - USD ($) | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Marketable Securities [Line Items] |  |
Mortgage loans | $ 280,334,517 | $ 253,771,091
Commercial Loan [Member] |  |
Marketable Securities [Line Items] |  |
Mortgage loans | 51,683,022 | 46,836,866
Residential Mortgage [Member] |  |
Marketable Securities [Line Items] |  |
Mortgage loans | 53,533,712 | 111,111,777
Residential Construction [Member] |  |
Marketable Securities [Line Items] |  |
Mortgage loans | 175,117,783 | 95,822,448
Performing Financing Receivable [Member] |  |
Marketable Securities [Line Items] |  |
Mortgage loans | 276,062,489 | 243,488,621
Performing Financing Receivable [Member] | Commercial Loan [Member] |  |
Marketable Securities [Line Items] |  |
Mortgage loans | 49,959,650 | 44,688,039
Performing Financing Receivable [Member] | Residential Mortgage [Member] |  |
Marketable Securities [Line Items] |  |
Mortgage loans | 50,985,056 | 87,889,768
Performing Financing Receivable [Member] | Residential Construction [Member] |  |
Marketable Securities [Line Items] |  |
Mortgage loans | 175,117,783 | 110,910,814
Nonperforming Financing Receivable [Member] |  |
Marketable Securities [Line Items] |  |
Mortgage loans | 4,272,028 | 10,282,470
Nonperforming Financing Receivable [Member] | Commercial Loan [Member] |  |
Marketable Securities [Line Items] |  |
Mortgage loans | 1,723,372 | 2,148,827
Nonperforming Financing Receivable [Member] | Residential Mortgage [Member] |  |
Marketable Securities [Line Items] |  |
Mortgage loans | 2,548,656 | 7,932,680
Nonperforming Financing Receivable [Member] | Residential Construction [Member] |  |
Marketable Securities [Line Items] |  |
Mortgage loans |  | 200,963
Performing and Non-Performing [Member] |  |
Marketable Securities [Line Items] |  |
Mortgage loans | 280,334,517 | 253,771,091
Performing and Non-Performing [Member] | Commercial Loan [Member] |  |
Marketable Securities [Line Items] |  |
Mortgage loans | 51,683,022 | 46,836,866
Performing and Non-Performing [Member] | Residential Mortgage [Member] |  |
Marketable Securities [Line Items] |  |
Mortgage loans | 53,533,712 | 95,822,448
Performing and Non-Performing [Member] | Residential Construction [Member] |  |
Marketable Securities [Line Items] |  |
Mortgage loans | $ 175,117,783 | $ 111,111,777

X
- Definition Represents the monetary amount of Mortgage loans, as of the indicated date. + References No definition available. + Details
Name: | SNFCA_MortgageLoans
Namespace Prefix: | SNFCA_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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_MarketableSecuritiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
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_ResidentialMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | srt_CreditRatingMoodysAxis=SNFCA_PerformingFinancingReceivable1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CreditRatingMoodysAxis=SNFCA_NonperformingFinancingReceivable1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CreditRatingMoodysAxis=SNFCA_PerformingAndNonPerformingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |