XML 58 R46.htm IDEA: XBRL DOCUMENT
v3.25.1

Schedule of Commercial Real Estate Investment (Details) | Mar. 31, 2025 USD ($) ft² | Dec. 31, 2024 USD ($) ft²
--- | --- | ---
Marketable Securities [Line Items] |  |  |
Real estate held for investment (net of accumulated depreciation) |  | $ 202,629,726 | $ 197,693,338
Real estate held for sale |  | 2,713,040 | 1,278,033
Commercial Real Estate [Member] |  |  |
Marketable Securities [Line Items] |  |  |
Real estate held for investment (net of accumulated depreciation) |  | $ 124,874,527 | $ 126,074,928
Total square footage | ft² |  | 548,563 | 548,563
Real estate held for sale |  | $ 151,553 | $ 151,553
UTAH | Commercial Real Estate [Member] |  |  |
Marketable Securities [Line Items] |  |  |
Real estate held for investment (net of accumulated depreciation) | [1] | $ 124,856,106 | $ 126,056,342
Total square footage | ft² | [1] | 546,941 | 546,941
LOUISIANA | Commercial Real Estate [Member] |  |  |
Marketable Securities [Line Items] |  |  |
Real estate held for investment (net of accumulated depreciation) |  | $ 18,421 | $ 18,586
Total square footage | ft² |  | 1,622 | 1,622
MISSISSIPPI | Commercial Real Estate [Member] |  |  |
Marketable Securities [Line Items] |  |  |
Real estate held for sale | [2] | $ 151,553 | $ 151,553
[1] | Includes Center53
[2] | Consists of approximately 93 acres of undeveloped land

X
- Definition Total square footage. + References No definition available. + Details
Name: | SNFCA_TotalSquareFootage
Namespace Prefix: | SNFCA_
Data Type: | xbrli:decimalItemType
Balance Type: | na
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
- Definition Amount of investment in land and building held for sale. Excludes real estate considered inventory. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)(d)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)(6)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
Name: | us-gaap_RealEstateHeldforsale
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of real estate investment property, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)(d)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)(6)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
Name: | us-gaap_RealEstateInvestmentPropertyNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_UT
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_LA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_MS
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |