3) Investments: Schedule of Unrealized Loss on Investments (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
US Treasury Securities
Held-to-maturity Securities, Unrecognized Holding Loss	$ 35,072
Debt Securities, Held-to-maturity, Fair Value	20,543,850	$ 40,625,915
Corporate Securities
Debt Securities, Held-to-maturity, Fair Value	10,381,748
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Held-to-maturity Securities, Unrecognized Holding Loss	42,738
Debt Securities, Held-to-maturity, Fair Value	1,085,686	4,395,361
Total unrealized losses
Debt Securities, Held-to-maturity, Fair Value	32,011,284	122,649,830
US States and Political Subdivisions Debt Securities
Held-to-maturity Securities, Unrecognized Holding Loss	0
Debt Securities, Held-to-maturity, Fair Value		4,680,774
Corporate Debt Securities
Held-to-maturity Securities, Unrecognized Holding Loss	696,122
Debt Securities, Held-to-maturity, Fair Value		72,857,780
Redeemable Preferred Stock
Held-to-maturity Securities, Unrecognized Holding Loss	0
Debt Securities, Held-to-maturity, Fair Value		90,000
Less Than 12 Months | US Treasury Securities
Held-to-maturity Securities, Unrecognized Holding Loss	2,966	10,519
Debt Securities, Held-to-maturity, Fair Value	658,550	695,863
Less Than 12 Months | Corporate Securities
Held-to-maturity Securities, Unrecognized Holding Loss	191,271
Debt Securities, Held-to-maturity, Fair Value	5,965,416
Less Than 12 Months | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Held-to-maturity Securities, Unrecognized Holding Loss	10,067	79,896
Debt Securities, Held-to-maturity, Fair Value	379,177	1,705,296
Less Than 12 Months | Total unrealized losses
Held-to-maturity Securities, Unrecognized Holding Loss	204,304	2,616,732
Debt Securities, Held-to-maturity, Fair Value	7,003,143	65,372,847
Less Than 12 Months | US States and Political Subdivisions Debt Securities
Held-to-maturity Securities, Unrecognized Holding Loss		6,643
Debt Securities, Held-to-maturity, Fair Value		1,791,257
Less Than 12 Months | Corporate Debt Securities
Held-to-maturity Securities, Unrecognized Holding Loss		2,514,549
Debt Securities, Held-to-maturity, Fair Value		61,090,431
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	32,106	717,279
Debt Securities, Held-to-maturity, Fair Value	19,885,300	39,930,052
More Than 12 Months | Corporate Securities
Held-to-maturity Securities, Unrecognized Holding Loss	504,851
Debt Securities, Held-to-maturity, Fair Value	4,416,332
More Than 12 Months | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Held-to-maturity Securities, Unrecognized Holding Loss	32,671	228,968
Debt Securities, Held-to-maturity, Fair Value	706,509	2,690,065
More Than 12 Months | Total unrealized losses
Held-to-maturity Securities, Unrecognized Holding Loss	569,628	2,240,463
Debt Securities, Held-to-maturity, Fair Value	25,008,141	57,276,983
More Than 12 Months | US States and Political Subdivisions Debt Securities
Held-to-maturity Securities, Unrecognized Holding Loss		104,628
Debt Securities, Held-to-maturity, Fair Value		2,889,517
More Than 12 Months | Corporate Debt Securities
Held-to-maturity Securities, Unrecognized Holding Loss		1,189,588
Debt Securities, Held-to-maturity, Fair Value		11,767,349
More Than 12 Months | Redeemable Preferred Stock
Held-to-maturity Securities, Unrecognized Holding Loss		0
Debt Securities, Held-to-maturity, Fair Value		0
Total
Held-to-maturity Securities, Unrecognized Holding Loss	773,932
Total | US Treasury Securities
Held-to-maturity Securities, Unrecognized Holding Loss	35,072	727,798
Total | Corporate Securities
Held-to-maturity Securities, Unrecognized Holding Loss	696,122
Total | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Held-to-maturity Securities, Unrecognized Holding Loss	42,738	308,864
Total | Total unrealized losses
Held-to-maturity Securities, Unrecognized Holding Loss	$ 773,932	4,857,195
Total | US States and Political Subdivisions Debt Securities
Held-to-maturity Securities, Unrecognized Holding Loss		111,271
Total | Corporate Debt Securities
Held-to-maturity Securities, Unrecognized Holding Loss		3,704,137
Total | Redeemable Preferred Stock
Held-to-maturity Securities, Unrecognized Holding Loss		$ 5,125