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3) Investments: Investments Classified by Contractual Maturity Date (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
AmortizedCost	$ 231,474,083	$ 228,397,623
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date.	239,858,942	241,498,409
Collateralized Mortgage Backed Securities
AmortizedCost	12,105,727	9,503,016
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date.	12,125,550	9,551,537
Redeemable Preferred Stock
AmortizedCost	623,635	623,635
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date.	652,099	$ 673,192
DueIn2017Member
AmortizedCost	17,978,827
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date.	18,098,867
DueIn2018Through2021Member
AmortizedCost	67,126,658
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date.	67,514,026
DueIn2022Through2026Member
AmortizedCost	53,791,068
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date.	55,097,433
DueAfter2026Member
AmortizedCost	79,848,168
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date.	$ 86,370,967

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- Definition

Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date.

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- Definition

Amount before other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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No definition available.

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