2) Investments: Schedule of Unrealized Loss on Investments (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
US Treasury Securities
Debt Securities, Held-to-maturity, Fair Value	$ 40,629,688	$ 40,625,915
US States and Political Subdivisions Debt Securities
Debt Securities, Held-to-maturity, Fair Value	3,062,889	4,680,774
Corporate Debt Securities
Debt Securities, Held-to-maturity, Fair Value	11,134,820	72,857,780
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Debt Securities, Held-to-maturity, Fair Value	13,769,212	4,395,361
Total unrealized losses
Debt Securities, Held-to-maturity, Fair Value	68,596,609	122,649,830
Redeemable Preferred Stock
Debt Securities, Held-to-maturity, Fair Value		90,000
Less Than 12 Months | US Treasury Securities
Held-to-maturity Securities, Unrecognized Holding Loss	20,211	10,519
Debt Securities, Held-to-maturity, Fair Value	30,629,288	695,863
Less Than 12 Months | US States and Political Subdivisions Debt Securities
Held-to-maturity Securities, Unrecognized Holding Loss	9,026	6,643
Debt Securities, Held-to-maturity, Fair Value	3,062,889	1,791,257
Less Than 12 Months | Corporate Debt Securities
Held-to-maturity Securities, Unrecognized Holding Loss	118,746	2,514,549
Debt Securities, Held-to-maturity, Fair Value	7,184,311	61,090,431
Less Than 12 Months | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Held-to-maturity Securities, Unrecognized Holding Loss	205,470	79,896
Debt Securities, Held-to-maturity, Fair Value	13,266,443	1,705,296
Less Than 12 Months | Total unrealized losses
Held-to-maturity Securities, Unrecognized Holding Loss	353,453	2,616,732
Debt Securities, Held-to-maturity, Fair Value	54,142,931	65,372,847
Less Than 12 Months | Redeemable Preferred Stock
Held-to-maturity Securities, Unrecognized Holding Loss		5,125
Debt Securities, Held-to-maturity, Fair Value		90,000
More Than 12 Months | US Treasury Securities
Held-to-maturity Securities, Unrecognized Holding Loss	5,004	717,279
Debt Securities, Held-to-maturity, Fair Value	10,000,400	39,930,052
More Than 12 Months | US States and Political Subdivisions Debt Securities
Held-to-maturity Securities, Unrecognized Holding Loss	0	104,628
Debt Securities, Held-to-maturity, Fair Value	0	2,889,517
More Than 12 Months | Corporate Debt Securities
Held-to-maturity Securities, Unrecognized Holding Loss	344,667	1,189,588
Debt Securities, Held-to-maturity, Fair Value	3,950,509	11,767,349
More Than 12 Months | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Held-to-maturity Securities, Unrecognized Holding Loss	34,707	228,968
Debt Securities, Held-to-maturity, Fair Value	502,769	2,690,065
More Than 12 Months | Total unrealized losses
Held-to-maturity Securities, Unrecognized Holding Loss	384,378	2,240,463
Debt Securities, Held-to-maturity, Fair Value	14,453,678	57,276,983
More Than 12 Months | Redeemable Preferred Stock
Held-to-maturity Securities, Unrecognized Holding Loss		0
Debt Securities, Held-to-maturity, Fair Value		0
Total | US Treasury Securities
Held-to-maturity Securities, Unrecognized Holding Loss	25,215	727,798
Total | US States and Political Subdivisions Debt Securities
Held-to-maturity Securities, Unrecognized Holding Loss	9,026	111,271
Total | Corporate Debt Securities
Held-to-maturity Securities, Unrecognized Holding Loss	463,413	3,704,137
Total | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Held-to-maturity Securities, Unrecognized Holding Loss	240,177	308,864
Total | Total unrealized losses
Held-to-maturity Securities, Unrecognized Holding Loss	$ 737,831	4,857,195
Total | Redeemable Preferred Stock
Held-to-maturity Securities, Unrecognized Holding Loss		$ 5,125