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Investments In Securities (Schedule Of Gross Realized Gains And Losses On Securities) (Details) (USD $)
 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Schedule of Available-for-sale Securities [Line Items]        
Total, Gross realized gains     $ 1,018,217 $ 365,922
Total, Gross realized losses     (178,047) (21,106)
Net realized gain from securities     840,170 344,816
Impairments of other investments     (10,062) (34,070)
Gain on other investments     26,234 25,308
Loss On Other Investments     (263,434) (2,500)
Total     (247,262) (11,262)
Net realized gain on investments 8,689 261,938 592,908 333,554
Corporate Debt Securities
        
Schedule of Available-for-sale Securities [Line Items]        
Total, Gross realized gains     4,286 0
Common Stocks And Nonredeemable Preferred Stocks
        
Schedule of Available-for-sale Securities [Line Items]        
Total, Gross realized gains     1,013,931 365,922
Common stocks and nonredeemable preferred stocks     $ (178,047) $ (21,106)