Annual report pursuant to Section 13 and 15(d)

Investments and Fair Value of Financial Instruments - Investments in and Advances to Affiliates (Details)

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Investments and Fair Value of Financial Instruments - Investments in and Advances to Affiliates (Details) - USD ($)
Dec. 31, 2016
Dec. 31, 2015
Investments in and Advances to Affiliates [Line Items]    
Warrants - Affiliates $ 42,688 $ 127,202
Fair Value, Inputs, Level 1 [Member] | Warrants [Member]    
Investments in and Advances to Affiliates [Line Items]    
Warrants - Affiliates
Fair Value, Inputs, Level 2 [Member] | Warrants [Member]    
Investments in and Advances to Affiliates [Line Items]    
Warrants - Affiliates
Fair Value, Inputs, Level 3 [Member] | Warrants [Member]    
Investments in and Advances to Affiliates [Line Items]    
Warrants - Affiliates $ 42,688 $ 127,202