Quarterly report pursuant to Section 13 or 15(d)

Trading Securities (Schedule Of Gross Realized Gain/Loss) (Details)

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Trading Securities (Schedule Of Gross Realized Gain/Loss) (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Trading Securities Schedule Of Gross Realized Gainloss Details        
Sales proceeds     $ 280,195 $ 1,959,738
Gross realized (losses)     485,329
Gross realized gains     74,410
Gain (loss) on sale of trading securities $ 25,148 $ (187,207) $ 74,410 $ (485,329)