3) Investments: Schedule of Impaired Mortgage Loans (Details) - USD ($)	3 Months Ended	12 Months Ended
Mar. 31, 2018	Dec. 31, 2017
Commercial Loan
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		$ 365,220
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		365,220
Residential Mortgage
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	$ 3,653,126	3,322,552
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	3,653,126	3,290,094
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,709,837	1,601,000
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,709,837	1,601,000
Impaired Financing Receivable, Related Allowance	292,220	237,560
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,709,837	1,350,115
Residential Construction
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		461,834
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		277,232
Impaired Financing Receivable, with Related Allowance, Recorded Investment		461,834
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		461,834
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		277,232
TotalResidentialMortgageMember
Impaired Financing Receivable, with Related Allowance, Recorded Investment	5,362,963	4,923,552
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	5,362,963	4,923,552
Impaired Financing Receivable, Related Allowance	292,220	237,560
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	$ 5,362,963	$ 4,640,209

Amount of allowance for credit losses related to recorded investment.

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- Definition

Amount of average investment of impaired financing receivables for which there is no related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5258-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524

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- Definition

Amount of investment in impaired financing receivables for which there is no related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524

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- Definition

Amount of average investment of impaired financing receivables for which there is a related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5258-111524

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- Definition

Amount of investment in impaired financing receivables for which there is a related allowance for credit losses.

+ References

+ Details

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- Definition

Unpaid principal balance of impaired financing receivables for which there is a related allowance for credit losses.

+ References

+ Details

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