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3) Investments: Equity Securities - Additional (Details) - USD ($)
3 Months Ended
Mar. 31, 2016
Mar. 31, 2017
Dec. 31, 2016
Average Market Value of Security over initial investment   86.20% 81.40%
Equity Securities      
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Securities $ 43,630