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2) Investments: Mortgage Loans - Additional (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016
Allowance for losses on mortgage loans held for investment | $ 1,768,796 | $ 1,748,783
Minimum |  |
Mortgage Loan, Interest Rate | 2.00% |
Maximum |  |
Mortgage Loan, Interest Rate | 10.50% |

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- Definition Represents the Mortgage Loan, Interest Rate, during the indicated time period. + References No definition available. + Details
Name: | fil_MortgageLoanInterestRate
Namespace Prefix: | fil_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition The reserve to cover probable credit losses related to specifically identified fixed maturity real estate loans as well as probable credit losses inherent in the remainder of that loan portfolio. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=82921503&loc=d3e21338-158488 + Details
Name: | us-gaap_AllowanceForLoanAndLeaseLossesRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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