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3) Investments: Investments Classified by Contractual Maturity Date (Details) - USD ($) | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | ---
AmortizedCost | $ 186,445,498 | $ 184,979,644
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date. | 195,986,579 | 191,850,749
Available-for-sale Securities, Amortized Cost Basis | 11,139,482 |
Represents the monetary amount of AvailableForSaleSecuritiesEstimatedFairValue, as of the indicated date. | 10,735,239 |
Collateralized Mortgage Backed Securities |  |
AmortizedCost | 9,753,206 | 9,488,083
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date. | 9,765,624 | 9,428,612
Redeemable Preferred Stock |  |
AmortizedCost | 623,635 | 623,635
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date. | 629,962 | $ 637,053
Common Stock |  |
Available-for-sale Securities, Amortized Cost Basis | 11,139,482 |
Represents the monetary amount of AvailableForSaleSecuritiesEstimatedFairValue, as of the indicated date. | 10,735,239 |
DueIn2017Member |  |
AmortizedCost | 5,625,049 |
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date. | 5,677,028 |
DueIn2018Through2021Member |  |
AmortizedCost | 42,733,718 |
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date. | 44,794,103 |
DueIn2022Through2026Member |  |
AmortizedCost | 43,263,792 |
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date. | 45,020,917 |
DueAfter2026Member |  |
AmortizedCost | 84,446,098 |
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date. | $ 90,098,945 |

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- Definition Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date. + References No definition available. + Details
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- Definition This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount before other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity. + References No definition available. + Details
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