3) Investments: Held-to-maturity Securities (Details) - USD ($)	3 Months Ended	12 Months Ended
Mar. 31, 2019	Dec. 31, 2018
AmortizedCost	$ 231,378,413
Held to maturity securities, Estimated fair value	240,058,373
Mortgage loans on real estate and construction	196,344,356	$ 186,465,069
Mortgage loans on real estate and construction, unamortized deferred loan fees, net	(1,261,587)	(1,275,030)
Mortgage loans on real estate and construction	(1,378,215)	1,347,972
Real estate held for investment, net of depreciation	121,282,747	121,558,222
Policy loans	6,354,430	6,424,325
Insurance assignments	38,823,751	35,239,396
Federal Home Loan Bank stock	2,686,500	2,548,700
Other investments	4,048,750	3,497,762
Allowance for doubtful accounts	(1,263,475)	(1,092,528)
Total other investments and policy loans	50,649,956	46,617,655
Accrued investment income	3,712,606	3,566,146
Total investments	610,295,430	595,844,426
Mortgage loans on real estate and construction, allowance for losses	1,378,215	(1,347,972)
Total
AmortizedCost	231,378,413	232,078,723
Held-to-maturity Securities, Unrecognized Holding Gain	10,764,882
Held-to-maturity Securities, Unrecognized Holding Loss	(2,084,922)
Held to maturity securities, Estimated fair value	240,058,373	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	52,162,274	52,017,683
Held-to-maturity Securities, Unrecognized Holding Gain	376,785
Held-to-maturity Securities, Unrecognized Holding Loss	(456,728)
Held to maturity securities, Estimated fair value	52,082,331	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	(456,728)	(727,798)
US States and Political Subdivisions Debt Securities
AmortizedCost	6,131,310	6,959,237
Held-to-maturity Securities, Unrecognized Holding Gain	42,653
Held-to-maturity Securities, Unrecognized Holding Loss	(55,394)
Held to maturity securities, Estimated fair value	6,118,569	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	(55,394)	(111,271)
Corporate Debt Securities
AmortizedCost	157,343,929	157,639,860
Held-to-maturity Securities, Unrecognized Holding Gain	9,982,667
Held-to-maturity Securities, Unrecognized Holding Loss	(1,445,027)
Held to maturity securities, Estimated fair value	165,881,569	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	(1,445,027)	(3,704,137)
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
AmortizedCost	15,637,703	15,358,746
Held-to-maturity Securities, Unrecognized Holding Gain	358,905
Held-to-maturity Securities, Unrecognized Holding Loss	(127,773)
Held to maturity securities, Estimated fair value	15,868,835	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	(127,773)	(308,864)
Redeemable Preferred Stock
AmortizedCost	103,197	103,197
Held-to-maturity Securities, Unrecognized Holding Gain	3,872
Held to maturity securities, Estimated fair value	107,069	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	6,974,259	6,312,158
Available-for-sale Securities, Gross Unrealized Gain	739,022	422,528
Available For Sale Securities - Gross Unrealized Losses	(785,929)
Available for Sale Securities - Estimated Fair Value	6,927,352	5,558,611
AvailableForSaleSecuritiesGrossUnrealizedLosses		(1,176,075)
Equity Securities
Available-for-sale Securities, Amortized Cost Basis	6,974,259	6,312,158
Available-for-sale Securities, Gross Unrealized Gain	739,022	422,528
Available For Sale Securities - Gross Unrealized Losses	(785,929)
Available for Sale Securities - Estimated Fair Value	6,927,352	5,558,611
AvailableForSaleSecuritiesGrossUnrealizedLosses		(1,176,075)
Residential Mortgage
Mortgage loans on real estate and construction	89,241,344	89,935,600
Real estate held for investment, net of depreciation	27,856,849	29,507,431
Residential construction
Mortgage loans on real estate and construction	75,484,460	71,366,544
Commercial
Mortgage loans on real estate and construction	34,258,354	27,785,927
Commercial Loan
Real estate held for investment, net of depreciation	$ 93,425,898	$ 92,050,791

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

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