XML 75 R63.htm IDEA: XBRL DOCUMENT v3.25.1

Loans Held for Sale (Details Narrative) - USD ($)	3 Months Ended			12 Months Ended
	Mar. 31, 2025		Mar. 31, 2024	Dec. 31, 2024	[1]
Loans Held For Sale
Provision on current loan originations	$ 183,034	[1]	$ 163,476	$ 932,154
Loan increase per point	$ 350
Amount of loan increased, per point	$ 1,000,000
[1] Included in mortgage fee income

X

- Definition

Amount of Loan Increased Per Point.

+ References

No definition available.

+ Details

Name:	SNFCA_AmountOfLoanIncreasedPerPoint
Namespace Prefix:	SNFCA_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	SNFCA_DisclosureLoansHeldForSaleAbstract
Namespace Prefix:	SNFCA_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Loan Increase Per Point.

+ References

No definition available.

+ Details

Name:	SNFCA_LoanIncreasePerPoint
Namespace Prefix:	SNFCA_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Provision on current loan originations.

+ References

No definition available.

+ Details

Name:	SNFCA_LoanLossReserveProvisionsForLoss
Namespace Prefix:	SNFCA_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration