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2) Investments: Equity Securities - Carrying Amount and Net Realized Loss (Details) - Held-to-maturity Securities - USD ($) | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Net carrying amount for sales of securities | $ 5,808,244 | $ 2,932,961
Net realized gain related to sales of securities | $ 268,823 | $ 463,892

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- Definition Represents the monetary amount of Net carrying amount for sales of securities, during the indicated time period. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Represents the monetary amount of Net realized gain related to sales of securities, during the indicated time period. + References No definition available. + Details
Name: | fil_NetRealizedGainRelatedToSalesOfSecurities
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | us-gaap_InformationByCategoryOfDebtSecurityAxis=us-gaap_HeldtomaturitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |