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2) Investments: Net carrying amount of held to maturity securities (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Held-to-maturity Securities |  |
Net carrying amount for sales of securities | $ 4,950,041 | $ 5,808,244

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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
Name: | fil_NetCarryingAmountForSalesOfSecurities
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | fil_GainsLossesOnInvestmentsByCategoryAxis=fil_HeldToMaturitySecurities1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |