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3) Investments: Held-to-maturity Securities (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2017 | Dec. 31, 2016
AmortizedCost | $ 186,445,498 | $ 184,979,644
Held-to-maturity Securities, Unrecognized Holding Gain | 12,415,912 | 11,078,349
Held-to-maturity Securities, Unrecognized Holding Loss | (2,874,831) | (4,207,244)
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date. | 195,986,579 | 191,850,749
US Treasury and Government |  |
AmortizedCost | 4,357,040 | 4,475,065
Held-to-maturity Securities, Unrecognized Holding Gain | 244,853 | 249,028
Held-to-maturity Securities, Unrecognized Holding Loss | (57,240) | (66,111)
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date. | 4,544,653 | 4,657,982
US States and Political Subdivisions Debt Securities |  |
AmortizedCost | 5,995,384 | 6,017,225
Held-to-maturity Securities, Unrecognized Holding Gain | 146,273 | 153,514
Held-to-maturity Securities, Unrecognized Holding Loss | (132,140) | (133,249)
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date. | 6,009,517 | 6,037,490
Corporate Debt Securities |  |
AmortizedCost | 165,716,233 | 164,375,636
Held-to-maturity Securities, Unrecognized Holding Gain | 11,763,828 | 10,440,989
Held-to-maturity Securities, Unrecognized Holding Loss | (2,443,238) | (3,727,013)
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date. | 175,036,823 | 171,089,612
Collateralized Mortgage Backed Securities |  |
AmortizedCost | 9,753,206 | 9,488,083
Held-to-maturity Securities, Unrecognized Holding Gain | 246,004 | 221,400
Held-to-maturity Securities, Unrecognized Holding Loss | (233,586) | (280,871)
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
Held-to-maturity Securities, Unrecognized Holding Gain | 14,954 | 13,418
Held-to-maturity Securities, Unrecognized Holding Loss | (8,627) |
Represents the monetary amount of HeldToMaturitySecuritiesEstimatedFairValue, as of the indicated date. | $ 629,962 | $ 637,053

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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 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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- Definition Amount of unrecognized gain before loss on investments in held-to-maturity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 + Details
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- Definition Amount of unrecognized loss before gain on investments in held-to-maturity securities. Excludes write-down for other than temporary impairment (OTTI). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 + Details
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