Investments: Schedule Of Credit Risk Of Mortgage Loans Based On Performance Status (Details) - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Marketable Securities [Line Items]
Mortgage loans	$ 266,363,862	$ 253,771,091
Commercial Loan [Member]
Marketable Securities [Line Items]
Mortgage loans	47,440,235	46,836,866
Residential Mortgage [Member]
Marketable Securities [Line Items]
Mortgage loans	83,195,347	95,822,448
Residential construction
Marketable Securities [Line Items]
Mortgage loans	135,728,280	111,111,777
Performing Financing Receivable
Marketable Securities [Line Items]
Mortgage loans	261,638,153	243,488,621
Performing Financing Receivable | Commercial Loan [Member]
Marketable Securities [Line Items]
Mortgage loans	46,591,771	44,688,039
Performing Financing Receivable | Residential Mortgage [Member]
Marketable Securities [Line Items]
Mortgage loans	79,519,065	87,889,768
Performing Financing Receivable | Residential construction
Marketable Securities [Line Items]
Mortgage loans	135,527,317	110,910,814
Nonperforming Financing Receivable
Marketable Securities [Line Items]
Mortgage loans	4,725,709	10,282,470
Nonperforming Financing Receivable | Commercial Loan [Member]
Marketable Securities [Line Items]
Mortgage loans	848,464	2,148,827
Nonperforming Financing Receivable | Residential Mortgage [Member]
Marketable Securities [Line Items]
Mortgage loans	3,676,282	7,932,680
Nonperforming Financing Receivable | Residential construction
Marketable Securities [Line Items]
Mortgage loans	$ 200,963	$ 200,963