Annual report pursuant to Section 13 and 15(d)

Investment In Marketable Securities (Schedule Of Gross Realized Gain/Loss) (Details)

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Investment In Marketable Securities (Schedule Of Gross Realized Gain/Loss) (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Trading securities:    
Sale Proceeds $ 8,579,373us-gaap_ProceedsFromSaleOfTradingSecuritiesHeldforinvestment $ 5,365,534us-gaap_ProceedsFromSaleOfTradingSecuritiesHeldforinvestment
Gross Realized (losses) (74,732)us-gaap_TradingSecuritiesRealizedLoss (3,522,139)us-gaap_TradingSecuritiesRealizedLoss
Gross Realized gains 6,063,950us-gaap_TradingSecuritiesRealizedGain 4,639,844us-gaap_TradingSecuritiesRealizedGain
Gain on sale of marketable securities $ 5,989,218us-gaap_MarketableSecuritiesGainLoss $ 1,117,705us-gaap_MarketableSecuritiesGainLoss