Annual report pursuant to Section 13 and 15(d)

Trading Securities (Schedule Of Fair Value Of Assets) (Details)

v3.3.1.900
Trading Securities (Schedule Of Fair Value Of Assets) (Details) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading Securities $ 324,444 $ 6,026,780
Fair Value [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading Securities 324,444 6,026,780
Money market funds 332,706 673,281
Total 657,150 6,700,061
Fair Value Measurements Using Quoted Prices in Active Markets (Level 1) [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading Securities 324,444 6,026,780
Money market funds 332,706 673,281
Total $ 657,150 $ 6,700,061
Fair Value Measurements Using Significant Other Observable Inputs (Level 2) [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading Securities
Money market funds
Total
Fair Value Measurements Using Significant Unobservable Inputs (Level 3) [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading Securities
Money market funds
Total