8): Fair Value of Financial Instruments: Schedule of Changes in the consolidated balance sheet line items measured using level 3 inputs (Details) - USD ($)	3 Months Ended	12 Months Ended
Mar. 31, 2018	Dec. 31, 2017
Loan Commitments
Fair Value Balance	$ 1,996,589	$ 6,809,332
Fair Value, Losses (Gains) included in earnings	440,958	(4,812,743)
Fair Value Balance	2,437,547	1,996,589
Loans Held for Sale
Fair Value Balance	133,414,188
Fair Value, Originations	479,953,484	1,233,683,666
Fair Value, Sales	(505,586,040)	(1,151,031,388)
Fair Value, Transfer to mortgage loans held for investment	(139,464)
Fair Value, Losses (Gains) included in earnings	17,224,145	50,761,910
Fair Value Balance	$ 124,866,313	133,414,188
Bank Loan Interest Rate Swaps
Fair Value Balance		(3,308)
Fair Value, Losses (Gains) included in other comprehensive income		$ 3,308

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

No definition available.

Represents the monetary amount of FairValueLossesGainsIncludedInEarnings, during the indicated time period.

No definition available.

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Represents the monetary amount of FairValueLossesGainsIncludedInOtherComprehensiveIncome, during the indicated time period.

No definition available.

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Represents the monetary amount of Fair Value, Originations, during the indicated time period.

No definition available.

Represents the monetary amount of Fair Value, Sales, during the indicated time period.

No definition available.

Represents the monetary amount of Fair Value, Transfer to mortgage loans held for investment, during the indicated time period.

No definition available.

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