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Investments (Narrative) (Details) (USD $)
9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Schedule of Available-for-sale Securities [Line Items]    
Proceeds from sale of investments $ 802,026 $ 990,397
Gross realized gains 43,367 27,291
Gross realized losses $ 16,952 $ 62,824
Equities [Member]
   
Schedule of Available-for-sale Securities [Line Items]    
Number Of Investment Securities 2  
Corporate Bonds [Member]
   
Schedule of Available-for-sale Securities [Line Items]    
Number Of Investment Securities 4