3) Investments: Commercial Real Estate Investment (Details)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Real estate held for investment (net of accumulated depreciation)	$ 121,282,747	$ 121,558,222
Commercial Real Estate
Real estate held for investment (net of accumulated depreciation)	$ 93,425,898	$ 92,050,791
Square Footage	765,692	765,692
Commercial Real Estate | Arizona
Real estate held for investment (net of accumulated depreciation)	$ 4,000	$ 4,000
Square Footage	0	0
Commercial Real Estate | Kansas
Real estate held for investment (net of accumulated depreciation)	$ 7,210,017	$ 6,861,898
Square Footage	222,679	222,679
Commercial Real Estate | Louisiana
Real estate held for investment (net of accumulated depreciation)	$ 461,319	$ 467,694
Square Footage	7,063	7,063
Commercial Real Estate | Mississippi
Real estate held for investment (net of accumulated depreciation)	$ 3,309,692	$ 3,329,948
Square Footage	33,821	33,821
Commercial Real Estate | New Mexico
Real estate held for investment (net of accumulated depreciation)	$ 7,000	$ 7,000
Square Footage	0	0
Commercial Real Estate | Texas
Real estate held for investment (net of accumulated depreciation)	$ 300,000	$ 300,000
Square Footage	0	0
Commercial Real Estate | Utah
Real estate held for investment (net of accumulated depreciation)	$ 82,133,870	$ 81,080,251
Square Footage	502,129	502,129