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Investments in Securities and Fair Value Schedule of Estimated Fair Value Hierarchy of Investments and Related Impairments Recognized (Details) - USD ($)
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total at Estimated Fair Value $ 0 $ 163,350
Impairment Losses 0 (233,069)
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total at Estimated Fair Value 0 0
Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total at Estimated Fair Value 0 0
Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total at Estimated Fair Value $ 0 $ 163,350
Cost-basis investments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Valuation Method Fair Value Fair Value
Impaired Yes Yes
Total at Estimated Fair Value $ 0 $ 163,350
Impairment Losses 0 (233,069)
Cost-basis investments | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total at Estimated Fair Value 0 0
Cost-basis investments | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total at Estimated Fair Value 0 0
Cost-basis investments | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total at Estimated Fair Value $ 0 $ 163,350