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Summary of Aggregate Fair Value - Loans Held for Sale (Details) - USD ($) | Sep. 30, 2022 | Dec. 31, 2021
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Loans Held For Sale |  |
Aggregate fair value | $ 161,981,923 | $ 302,776,827
Unpaid principal balance | 161,668,488 | 294,481,503
Unrealized gain | $ 313,435 | $ 8,295,324

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- Definition Represents the monetary amount of Aggregate Fair Value - Loans Held For Sale, as of the indicated date. + References No definition available. + Details
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- Definition Represents the monetary amount of Aggregate unpaid principal balance - Loans Held for Sale, as of the indicated date. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- References No definition available. + Details
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- Definition Represents the monetary amount of Unrealized gain - Loans Held for Sale, as of the indicated date. + References No definition available. + Details
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Namespace Prefix: | SNFCA_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant