XML 13 R1.htm IDEA: XBRL DOCUMENT v3.10.0.1
Document and Entity Information - shares
 6 Months Ended
Jun. 30, 2018
Aug. 14, 2018
Entity Registrant Name SECURITY NATIONAL FINANCIAL CORP  
Document Type 10-Q  
Document Period End Date Jun. 30, 2018  
Trading Symbol snfca  
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 2018  
Document Fiscal Period Focus Q2  
Class A Common Stock    
Entity Common Stock, Shares Outstanding   14,569,509
Class C Common Stock    
Entity Common Stock, Shares Outstanding   2,089,184