XML 137 R124.htm IDEA: XBRL DOCUMENT
v3.21.1

21) Mortgage Servicing Rights: Schedule of Other Revenues (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Other Income | $ 9,246,574 | $ 7,577,641
Contractual Servicing Fees |  |
Other Income | 8,940,612 | 7,212,164
Late Fees |  |
Other Income | $ 305,962 | $ 365,477

X
- Definition Amount of revenue and income classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.4) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
Name: | us-gaap_OtherIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_ProductOrServiceAxis=snfc_ContractualServicingFeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=snfc_LateFeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |