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Investments In Securities And Fair Value (Schedule Of Carrying Value And Fair Value Of Financial Assets Disclosed) (Details) (USD $)
Dec. 31, 2012
Apr. 02, 2012
Dec. 31, 2011
Cash, Carrying Value $ 20,810,018   $ 18,042,258
Cash, Estimated Fair Value 20,810,018   18,042,258
Cost-basis investment, Carrying Value 1,871,315   1,303,887
Cost-basis investment, Estimated Fair Value 1,952,323   1,688,262
Accrued dividends and interest, Carrying Value 1,037,447   1,108,156
Accrued dividends and interest, Estimated Fair Value 1,037,447   1,108,156
Total Financial Assets, Carrying Value 23,718,780   20,454,301
Total Financial Assets, Estimated Fair Value 23,799,788   20,838,676
Contingent liability, Carrying Value 691,250    
Contingent liability, Estimated Fair Value 691,250 691,250  
Total Financial Liabilities, Carrying Value 691,250    
Total Financial Liabilities, Estimated Fair Value 691,250    
Level 1 [Member]
      
Cash, Estimated Fair Value 20,810,018   18,042,258
Cost-basis investment, Estimated Fair Value 0   0
Accrued dividends and interest, Estimated Fair Value 1,037,447   1,108,156
Total Financial Assets, Estimated Fair Value 21,847,465   19,150,414
Contingent liability, Estimated Fair Value 0    
Total Financial Liabilities, Estimated Fair Value 0    
Level 2 [Member]
      
Cash, Estimated Fair Value 0   0
Cost-basis investment, Estimated Fair Value 0   0
Accrued dividends and interest, Estimated Fair Value 0   0
Total Financial Assets, Estimated Fair Value 0   0
Contingent liability, Estimated Fair Value 0    
Total Financial Liabilities, Estimated Fair Value 0    
Level 3 [Member]
      
Cash, Estimated Fair Value 0   0
Cost-basis investment, Estimated Fair Value 1,952,323   1,688,262
Accrued dividends and interest, Estimated Fair Value 0   0
Total Financial Assets, Estimated Fair Value 1,952,323   1,688,262
Contingent liability, Estimated Fair Value 691,250    
Total Financial Liabilities, Estimated Fair Value $ 691,250