3) Investments: Held-to-maturity Securities (Details) - USD ($)	6 Months Ended	12 Months Ended
Jun. 30, 2019	Dec. 31, 2018
AmortizedCost	$ 222,824,099
Held to maturity securities, Estimated fair value	237,144,147
Mortgage loans on real estate and construction	188,322,005	$ 186,465,069
Mortgage loans on real estate and construction, unamortized deferred loan fees, net	(1,200,446)	(1,275,030)
Mortgage loans on real estate and construction	(1,292,914)	1,347,972
Real estate held for investment, net of depreciation	119,469,347	121,558,222
Policy loans	6,265,560	6,424,325
Insurance assignments	35,789,203	35,239,396
Federal Home Loan Bank stock	2,606,500	2,548,700
Other investments	4,348,750	3,497,762
Allowance for doubtful accounts	(1,399,272)	(1,092,528)
Total other investments and policy loans	47,610,741	46,617,655
Accrued investment income	3,894,701	3,566,146
Total investments	589,722,454	595,844,426
Mortgage loans on real estate and construction, allowance for losses	1,292,914	(1,347,972)
Total
AmortizedCost	222,824,099	232,078,723
Held-to-maturity Securities, Unrecognized Holding Gain	15,314,024
Held-to-maturity Securities, Unrecognized Holding Loss	(993,976)
Held to maturity securities, Estimated fair value	237,144,147	234,750,858
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain		7,529,330
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss		(4,857,195)
US Treasury Securities
AmortizedCost	42,197,238	52,017,683
Held-to-maturity Securities, Unrecognized Holding Gain	592,789
Held-to-maturity Securities, Unrecognized Holding Loss	(82,086)
Held to maturity securities, Estimated fair value	42,707,941	51,554,776
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain		264,891
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss		(727,798)
US Treasury Securities \| Total
Held-to-maturity Securities, Unrecognized Holding Loss	(82,086)	(727,798)
US States and Political Subdivisions Debt Securities
AmortizedCost	6,103,022	6,959,237
Held-to-maturity Securities, Unrecognized Holding Gain	79,100
Held-to-maturity Securities, Unrecognized Holding Loss	(10,582)
Held to maturity securities, Estimated fair value	6,171,540	6,880,240
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain		32,274
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss		(111,271)
US States and Political Subdivisions Debt Securities \| Total
Held-to-maturity Securities, Unrecognized Holding Loss	(10,582)	(111,271)
Corporate Debt Securities
AmortizedCost	157,441,604	157,639,860
Held-to-maturity Securities, Unrecognized Holding Gain	14,001,117
Held-to-maturity Securities, Unrecognized Holding Loss	(846,167)
Held to maturity securities, Estimated fair value	170,596,554	160,938,587
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain		7,002,864
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss		(3,704,137)
Corporate Debt Securities \| Total
Held-to-maturity Securities, Unrecognized Holding Loss	(846,167)	(3,704,137)
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
AmortizedCost	16,979,038	15,358,746
Held-to-maturity Securities, Unrecognized Holding Gain	628,906
Held-to-maturity Securities, Unrecognized Holding Loss	(55,141)
Held to maturity securities, Estimated fair value	17,552,803	15,277,280
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain		227,398
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss		(308,864)
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises \| Total
Held-to-maturity Securities, Unrecognized Holding Loss	(55,141)	(308,864)
Redeemable Preferred Stock
AmortizedCost	103,197	103,197
Held-to-maturity Securities, Unrecognized Holding Gain	12,112
Held to maturity securities, Estimated fair value	115,309	99,975
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain		1,903
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss		(5,125)
Redeemable Preferred Stock \| Total
Held-to-maturity Securities, Unrecognized Holding Loss		(5,125)
Industrial, miscellaneous and all other
Available-for-sale Securities, Amortized Cost Basis	7,558,408	6,312,158
Available-for-sale Securities, Gross Unrealized Gain	891,797	422,528
Available For Sale Securities - Gross Unrealized Losses	(848,644)
Available for Sale Securities - Estimated Fair Value	7,601,561	5,558,611
AvailableForSaleSecuritiesGrossUnrealizedLosses		(1,176,075)
Equity Securities
Available-for-sale Securities, Amortized Cost Basis	7,558,408	6,312,158
Available-for-sale Securities, Gross Unrealized Gain	891,797	422,528
Available For Sale Securities - Gross Unrealized Losses	(848,644)
Available for Sale Securities - Estimated Fair Value	7,601,561	5,558,611
AvailableForSaleSecuritiesGrossUnrealizedLosses		(1,176,075)
Residential Mortgage
Mortgage loans on real estate and construction	84,093,609	89,935,600
Real estate held for investment, net of depreciation	26,386,608	29,507,431
Residential construction
Mortgage loans on real estate and construction	74,712,638	71,366,544
Commercial
Mortgage loans on real estate and construction	32,009,118	27,785,927
Commercial Loan
Real estate held for investment, net of depreciation	$ 93,082,739	$ 92,050,791

Represents the monetary amount of Allowance for doubtful accounts, as of the indicated date.

No definition available.

Name:	fil_AllowanceForDoubtfulAccounts
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the monetary amount of Available for Sale Securities - Estimated Fair Value, as of the indicated date.

+ References

No definition available.

+ Details

Name:	fil_AvailableForSaleSecuritiesEstimatedFairValue
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the monetary amount of Available For Sale Securities Gross Unrealized Losses, as of the indicated date.

+ References

No definition available.

+ Details

Name:	fil_AvailableForSaleSecuritiesGrossUnrealizedLosses
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the monetary amount of AvailableForSaleSecuritiesGrossUnrealizedLosses, as of the indicated date.

+ References

No definition available.

+ Details

Name:	fil_AvailableForSaleSecuritiesGrossUnrealizedLosses2
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the monetary amount of Federal Home Loan Bank stock, as of the indicated date.

+ References

No definition available.

+ Details

Name:	fil_FederalHomeLoanBankStockAmortizedCost
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the monetary amount of Held to maturity securities, Estimated fair value, as of the indicated date.

+ References

No definition available.

+ Details

Name:	fil_HeldToMaturitySecuritiesEstimatedFairValue
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the monetary amount of Held-to-maturity Securities, Unrecognized Holding Gain, during the indicated time period.

+ References

No definition available.

+ Details

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

- Definition

Represents the monetary amount of Held-to-maturity Securities, Unrecognized Holding Loss, during the indicated time period.

+ References

No definition available.

+ Details

Name:	fil_HeldToMaturitySecuritiesUnrecognizedHoldingLoss
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the monetary amount of Insurance assignments, as of the indicated date.

+ References

No definition available.

+ Details

Name:	fil_InsuranceAssignmentsAmortizedCost
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the monetary amount of Mortgage loans on real estate and construction, as of the indicated date.

+ References

No definition available.

+ Details

Name:	fil_MortgageLoansOnRealEstateAndConstruction
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the monetary amount of Mortgage loans on real estate and construction, as of the indicated date.

+ References

No definition available.

+ Details

Name:	fil_MortgageLoansOnRealEstateAndConstructionAllowanceForLosses
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the monetary amount of Mortgage loans on real estate and construction, unamortized deferred loan fees, net, as of the indicated date.

+ References

No definition available.

+ Details

Name:	fil_MortgageLoansOnRealEstateAndConstructionUnamortizedDeferredLoanFeesNet
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the monetary amount of Other investments, as of the indicated date.

+ References

No definition available.

+ Details

Name:	fil_OtherInvestmentsAmortizedCost
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the monetary amount of Policy loans, as of the indicated date.

+ References

No definition available.

+ Details

Name:	fil_PolicyLoansAmortizedCost
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Interest, dividends, rents, ancillary and other revenues earned but not yet received by the entity on its investments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(4))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_AccruedInvestmentIncomeReceivable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

No definition available.

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesAmortizedCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of unrealized gain before deducting unrealized loss on investments in debt and equity securities classified as available-for-sale securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27232-111563

+ Details

Name:	us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27232-111563

+ Details

Name:	us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount, before other-than-temporary impairment (OTTI) accretion, of investment in debt securities measured at amortized cost (held-to-maturity).

+ References

No definition available.

+ Details

Name:	us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Sum of the carrying amounts as of the balance sheet date of all investments.

+ References

+ Details

Name:	us-gaap_Investments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount, after allowance for bad debt, of loan receivables held-for-sale that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522

+ Details

Name:	us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroup
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of real estate investments, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; (7) other real estate investments; (8) real estate joint ventures; and (9) unconsolidated real estate and other joint ventures not separately presented.

+ References

+ Details

Name:	us-gaap_RealEstateInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	fil_TimeDurationAxis=fil_TotalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_USTreasurySecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_RedeemablePreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=fil_IndustrialMiscellaneousAndAllOtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=fil_EquitySecurities1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_ResidentialMortgageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=fil_ResidentialConstructionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=fil_CommercialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CommercialLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: