Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2011	Mar. 29, 2012	Jun. 30, 2011
Document and Entity Information
Entity Registrant Name	SECURITY NATIONAL FINANCIAL CORP
Document Type	10-K
Document Period End Date	Dec. 31, 2011
Amendment Flag	false
Entity Central Index Key	0000318673
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	FY
Entity Common Stock, Shares Outstanding		9,638,798
Entity Public Float			$ 13,582,000