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Significant Accounting Policies (Schedule Of Gains And Losses On Trading Securities) (Details)
12 Months Ended
Dec. 31, 2016
USD ($)
Significant Accounting Policies [Abstract]  
Net gains and losses recognized during the period on trading securities $ (143,185)
Less: Net gains and losses recognized during the period on trading securities sold during the period 0
Unrealized gains and losses recognized during the reporting period on trading securities still held at the reporting date $ (143,185)