Annual report pursuant to Section 13 and 15(d)

Investments and Fair Value of Financial Instruments - Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details)

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Investments and Fair Value of Financial Instruments - Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - Warrants [Member] - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Balance beginning $ 127,202 $ 294,653
Received 27,703 63,997
Allocated to employees as compensation (19,392) (44,800)
Unrealized loss (92,825) (186,648)
Balance ending $ 42,688 $ 127,202