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2) Investments: Equity Securities - Carrying Amount and Net Realized Loss (Details) - Held-to-maturity Securities - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Net carrying amount for sales of securities $ 5,808,244 $ 2,932,961
Net realized gain related to sales of securities $ 268,823 $ 463,892