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17) Fair Value of Financial Instruments: Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets (Details) | 12 Months Ended
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Dec. 31, 2017 USD ($)
Loans Held for Sale |
Fair Value Balance | $ 133,414,188
Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset And Liability, Weighted Average | 102.80%
Loans Held for Sale | Minimum |
Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset And Liability, Range of Inputs | 100.00%
Loans Held for Sale | Maximum |
Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset And Liability, Range of Inputs | 110.50%
Net Derivatives Loan Commitments |
Fair Value Balance | $ 1,996,589
Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset And Liability, Weighted Average | 19.00%
Net Derivatives Loan Commitments | Minimum |
Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset And Liability, Range of Inputs | 1.00%
Net Derivatives Loan Commitments | Maximum |
Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset And Liability, Range of Inputs | 99.00%

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