XML 52 R41.htm IDEA: XBRL DOCUMENT
v3.23.1

Schedule of Fair Value of Fixed Maturity Securities (Details) - USD ($) | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Marketable Securities [Line Items] |  |
Available for sale securities, unrecognized holding loss | $ 6,751,930 | $ 16,883,189
Available for sale securities, fair value | 188,358,922 | 267,774,539
Available for sale securities, unrecognized holding loss | 8,882,200 | 2,291,672
Available for sale securities, fair value | 76,097,473 | 13,189,587
Available for sale securities, unrecognized holding loss | 15,634,130 | 19,174,861
Available for sale securities, fair value | 264,456,395 | 280,964,126
Restricted Assets [Member] |  |
Marketable Securities [Line Items] |  |
Available for sale securities, unrecognized holding loss | 4,290 | 14,907
Available for sale securities, fair value | 537,225 | 959,010
Available for sale securities, unrecognized holding loss | 9,767 | 3,469
Available for sale securities, fair value | 500,955 | 58,072
Available for sale securities, unrecognized holding loss | 14,056 | 18,376
Available for sale securities, fair value | 1,038,179 | 1,017,082
US Treasury Securities [Member] |  |
Marketable Securities [Line Items] |  |
Available for sale securities, unrecognized holding loss | 644,240 | 2,685,277
Available for sale securities, fair value | 53,196,137 | 79,400,753
Available for sale securities, unrecognized holding loss | 1,403,155 |
Available for sale securities, fair value | 29,019,470 |
Available for sale securities, unrecognized holding loss | 2,047,395 | 2,685,277
Available for sale securities, fair value | 82,215,607 | 79,400,753
US States and Political Subdivisions Debt Securities [Member] |  |
Marketable Securities [Line Items] |  |
Available for sale securities, unrecognized holding loss | 204,976 | 378,067
Available for sale securities, fair value | 4,644,270 | 5,467,910
Available for sale securities, unrecognized holding loss | 132,970 | 80,070
Available for sale securities, fair value | 1,213,482 | 429,020
Available for sale securities, unrecognized holding loss | 337,946 | 458,137
Available for sale securities, fair value | 5,857,752 | 5,896,930
US States and Political Subdivisions Debt Securities [Member] | Restricted Assets [Member] |  |
Marketable Securities [Line Items] |  |
Available for sale securities, unrecognized holding loss | 2,670 | 11,891
Available for sale securities, fair value | 338,301 | 760,255
Available for sale securities, unrecognized holding loss | 9,767 | 3,469
Available for sale securities, fair value | 500,955 | 58,072
Available for sale securities, unrecognized holding loss | 12,436 | 15,360
Available for sale securities, fair value | 839,256 | 818,327
Corporate Securities [Member] |  |
Marketable Securities [Line Items] |  |
Available for sale securities, unrecognized holding loss | 5,315,889 | 10,935,114
Available for sale securities, fair value | 123,534,510 | 162,995,969
Available for sale securities, unrecognized holding loss | 3,723,412 | 995,659
Available for sale securities, fair value | 26,399,408 | 5,781,822
Available for sale securities, unrecognized holding loss | 9,039,301 | 11,930,773
Available for sale securities, fair value | 149,933,918 | 168,777,791
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |
Marketable Securities [Line Items] |  |
Available for sale securities, unrecognized holding loss | 586,825 | 2,884,731
Available for sale securities, fair value | 6,984,005 | 19,909,907
Available for sale securities, unrecognized holding loss | 3,622,663 | 1,215,943
Available for sale securities, fair value | 19,465,113 | 6,978,745
Available for sale securities, unrecognized holding loss | 4,209,488 | 4,100,674
Available for sale securities, fair value | 26,449,118 | 26,888,652
Cemetery Perpectual Care Oblication [Member] |  |
Marketable Securities [Line Items] |  |
Available for sale securities, unrecognized holding loss | 435 | 1,883
Available for sale securities, fair value | 54,401 | 154,004
Available for sale securities, unrecognized holding loss | 5,493 | 6,633
Available for sale securities, fair value | 112,637 | 71,112
Available for sale securities, unrecognized holding loss | 5,928 | 8,516
Available for sale securities, fair value | 167,038 | 225,116
Cemetery Perpectual Care Oblication [Member] | US States and Political Subdivisions Debt Securities [Member] |  |
Marketable Securities [Line Items] |  |
Available for sale securities, unrecognized holding loss | 435 | 1,845
Available for sale securities, fair value | 54,401 | 94,612
Available for sale securities, unrecognized holding loss | 5,493 | 6,633
Available for sale securities, fair value | 112,637 | 71,112
Available for sale securities, unrecognized holding loss | 5,928 | 8,478
Available for sale securities, fair value | 167,038 | 165,724
Cemetery Perpectual Care Oblication [Member] | US Treasury Securities [Member] |  |
Marketable Securities [Line Items] |  |
Available for sale securities, unrecognized holding loss |  | 38
Available for sale securities, fair value |  | 59,392
Available for sale securities, unrecognized holding loss |  |
Available for sale securities, fair value |  |
Available for sale securities, unrecognized holding loss |  | 38
Available for sale securities, fair value |  | 59,392
Corporate Debt Securities [Member] | Restricted Assets [Member] |  |
Marketable Securities [Line Items] |  |
Available for sale securities, unrecognized holding loss | 1,620 | 3,016
Available for sale securities, fair value | 198,923 | 198,755
Available for sale securities, unrecognized holding loss |  |
Available for sale securities, fair value |  |
Available for sale securities, unrecognized holding loss | 1,620 | 3,016
Available for sale securities, fair value | $ 198,923 | $ 198,755

X
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479081/326-30-55-8 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-7 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479106/326-30-50-5 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-7 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479106/326-30-50-5 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479081/326-30-55-8 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-7 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479106/326-30-50-5 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-7 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479106/326-30-50-5 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position without allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479081/326-30-55-8 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479106/326-30-50-4 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479106/326-30-50-4 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
Namespace Prefix: | us-gaap_
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_InvestmentTypeAxis=SNFCA_RestrictedAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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

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

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_USTreasurySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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