XML 82 R69.htm IDEA: XBRL DOCUMENT
v3.21.1

2) Investments: Schedule of aging of mortgage loans (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Mortgage Loans during period |  | $ 253,771,091 | $ 241,192,422
Mortgage Loans, Allowance for Loan Losses |  | (2,005,127) | (1,453,037)
Mortgage Loans, Unamortized deferred loan fees, net |  | (1,161,132) | (2,391,567)
Mortgage Loans, Unamortized discounts, net |  | (1,260,896) | (653,272)
Past Due 30 to 59 Days |  |  |
Mortgage Loans during period |  | 6,226,896 | 12,481,296
Past Due 60 to 89 Days |  |  |
Mortgage Loans during period |  | 2,860,928 | 4,085,767
Past Due 90 or More Days |  |  |
Mortgage Loans during period | [1] | 7,818,410 | 7,244,461
In Foreclosure |  |  |
Mortgage Loans during period | [1] | 2,464,060 | 1,651,465
Total Past Due |  |  |
Mortgage Loans during period |  | 19,370,294 | 25,462,989
Current |  |  |
Mortgage Loans during period |  | 234,400,797 | 215,729,433
Net Mortgage Loans |  |  |
Mortgage Loans during period |  | 249,343,936 | 236,694,546
Commercial Loan |  |  |
Mortgage Loans during period |  | 46,836,866 | 38,718,220
Mortgage Loans, Allowance for Loan Losses |  | (187,129) | (187,129)
Mortgage Loans, Unamortized deferred loan fees, net |  | (32,557) | (88,918)
Mortgage Loans, Unamortized discounts, net |  | (880,721) | (653,272)
Commercial Loan | Past Due 30 to 59 Days |  |  |
Mortgage Loans during period |  | 233,200 | 1,872,000
Commercial Loan | Past Due 60 to 89 Days |  |  |
Mortgage Loans during period |  | 812,780 | 0
Commercial Loan | Past Due 90 or More Days |  |  |
Mortgage Loans during period | [1] | 2,148,827 | 4,488,719
Commercial Loan | In Foreclosure |  |  |
Mortgage Loans during period | [1] | 0 | 0
Commercial Loan | Total Past Due |  |  |
Mortgage Loans during period |  | 3,194,807 | 6,360,719
Commercial Loan | Current |  |  |
Mortgage Loans during period |  | 43,642,059 | 32,357,501
Commercial Loan | Net Mortgage Loans |  |  |
Mortgage Loans during period |  | 45,736,459 | 37,788,901
Residential Mortgage |  |  |
Mortgage Loans during period |  | 95,822,448 | 113,043,965
Mortgage Loans, Allowance for Loan Losses |  | (1,774,796) | (1,222,706)
Mortgage Loans, Unamortized deferred loan fees, net |  | (909,864) | (1,567,581)
Mortgage Loans, Unamortized discounts, net |  | (380,175) | 0
Residential Mortgage | Past Due 30 to 59 Days |  |  |
Mortgage Loans during period |  | 5,866,505 | 10,609,296
Residential Mortgage | Past Due 60 to 89 Days |  |  |
Mortgage Loans during period |  | 2,048,148 | 4,085,767
Residential Mortgage | Past Due 90 or More Days |  |  |
Mortgage Loans during period | [1] | 5,669,583 | 2,100,742
Residential Mortgage | In Foreclosure |  |  |
Mortgage Loans during period | [1] | 2,263,097 | 1,651,465
Residential Mortgage | Total Past Due |  |  |
Mortgage Loans during period |  | 15,847,333 | 18,447,270
Residential Mortgage | Current |  |  |
Mortgage Loans during period |  | 79,975,115 | 94,596,695
Residential Mortgage | Net Mortgage Loans |  |  |
Mortgage Loans during period |  | 92,757,613 | 110,253,678
Residential construction |  |  |
Mortgage Loans during period |  | 111,111,777 | 89,430,237
Mortgage Loans, Allowance for Loan Losses |  | (43,202) | (43,202)
Mortgage Loans, Unamortized deferred loan fees, net |  | (218,711) | (735,068)
Mortgage Loans, Unamortized discounts, net |  | 0 | 0
Residential construction | Past Due 30 to 59 Days |  |  |
Mortgage Loans during period |  | 127,191 | 0
Residential construction | Past Due 60 to 89 Days |  |  |
Mortgage Loans during period |  | 0 | 0
Residential construction | Past Due 90 or More Days |  |  |
Mortgage Loans during period | [1] | 0 | 655,000
Residential construction | In Foreclosure |  |  |
Mortgage Loans during period | [1] | 200,963 | 0
Residential construction | Total Past Due |  |  |
Mortgage Loans during period |  | 328,154 | 655,000
Residential construction | Current |  |  |
Mortgage Loans during period |  | 110,783,623 | 88,775,237
Residential construction | Net Mortgage Loans |  |  |
Mortgage Loans during period |  | $ 110,849,864 | $ 88,651,967
[1] | There was not any interest income recognized on loans past due greater than 90 days or in foreclosure

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

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

X
- Definition Represents the monetary amount of Mortgage Loans, Unamortized deferred loan fees, net, during the indicated time period. + References No definition available. + Details
Name: | snfc_MortgageLoansUnamortizedDeferredLoanFeesNet
Namespace Prefix: | snfc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Details
Name: | snfc_AgingOfLoansAxis=snfc_PastDue30To59DaysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | snfc_AgingOfLoansAxis=snfc_PastDue60To89DaysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | snfc_AgingOfLoansAxis=snfc_PastDue90OrMoreDaysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | snfc_AgingOfLoansAxis=snfc_InForeclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | snfc_AgingOfLoansAxis=snfc_TotalPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | snfc_AgingOfLoansAxis=snfc_CurrentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | snfc_AgingOfLoansAxis=snfc_NetMortgageLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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=snfc_ResidentialConstructionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |