2) Investments: Residential Real Estate Investment (Details) - USD ($)		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
Real estate held for investment (net of accumulated depreciation)		$ 131,684,453	$ 102,756,946
Real estate held for sale		7,878,807	14,097,627
Residential Real Estate
Real estate held for investment (net of accumulated depreciation)		24,843,743	12,530,306
Real estate held for sale		3,478,254	8,021,306
California | Residential Real Estate
Real estate held for sale		0	640,452
Florida | Residential Real Estate
Real estate held for investment (net of accumulated depreciation)		0	2,487,723
Real estate held for sale		744,322	1,300,641
Nevada | Residential Real Estate
Real estate held for investment (net of accumulated depreciation)		0	293,516
Real estate held for sale		979,640	0
Ohio | Residential Real Estate
Real estate held for sale		10,000	10,000
Utah
Real estate held for investment (net of accumulated depreciation)	[1]	23,777,478	7,889,576
Utah | Residential Real Estate
Real estate held for investment (net of accumulated depreciation)	[2]	24,557,562	9,462,886
Real estate held for sale		1,744,292	5,880,213
Lots available for sale		36	48
Lots to be developed		350	174
Washington | Residential Real Estate
Real estate held for investment (net of accumulated depreciation)	[3]	286,181	286,181
Real estate held for sale		$ 0	$ 190,000

[1] The estimated remaining cost to complete the undeveloped lots is $17,354,000 and $1,900,000 as of December 31, 2020 and 2019, respectively

[2] Including subdivision land developments

[3] Improved residential lots