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Derivative Financial Instruments (Details Textuals) - USD ($) |  |  |  | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 14, 2015 | Feb. 21, 2014 | Nov. 08, 2013 | Dec. 31, 2015 | Dec. 31, 2014 | Jul. 20, 2015 | Jun. 30, 2015 | Jan. 30, 2015 | Feb. 02, 2014 | Sep. 23, 2013
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Loss on exchange of warrants |  |  |  |  | $ 1,845,810 | $ 0 |  |  |  |  |
Class of warrant or right, number of securities called by warrants or rights (shares) |  |  |  |  |  |  |  |  |  |  | 355,914
Class of warrant or right, exercise price of warrants or rights (per share) |  |  |  |  |  |  |  | $ 10.20 | $ 10.20 |  |
Proceeds from warrant exercises (dollars) |  | $ 12,861,057 |  |  |  |  |  |  |  |  |
Reclassification of warrants from liability to equity |  |  |  |  |  | (3,166,482) |  |  |  |  |
Change in fair value of derivative |  |  |  |  | $ (2,133,820) | 7,845,214 |  |  |  |  |
Warrant [Member] |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Fair market value of asset (per share) | [1] |  |  |  | $ 7.66 |  |  |  |  |  |
Fair value of remaining unexercised warrants |  | $ (1,181,638) |  |  |  |  |  |  |  |  |
Remaining unexercised warrants, shares |  | (396,536) |  |  |  |  |  |  |  |  |
Loss on exchange of warrants |  |  |  |  | $ 1,197,821 |  |  |  |  |  |
Stockholders' equity note, changes in capital structure, subsequent changes to number of common shares |  |  |  | 174,732 |  |  |  |  |  |  |
Reclassification of warrants from liability to equity |  |  |  |  |  | (3,166,482) |  |  |  |  |
Change in fair value of derivative |  |  |  |  | $ 2,133,820 | (7,845,214) |  |  |  |  |
Series A five-year warrants [Member] |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Class of warrant or right, expiration period |  |  | 5 years |  |  |  |  |  |  |  |
Class of warrant or right, number of securities called by warrants or rights (shares) |  |  | 1,714,297 |  |  |  |  |  |  | 857,158 |
Class of warrant or right, exercise price of warrants or rights (per share) |  |  |  |  |  |  |  |  |  | $ 7.00 | $ 5.00
Class of Warrant or Right, Outstanding |  |  | 37,526 |  |  |  |  |  |  |  |
Series B five-year warrants [Member] |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Class of warrant or right, exercise price of warrants or rights (per share) |  |  |  |  |  |  |  |  |  | $ 10.00 |
2013 Activity [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Class of warrant or right, exercise price of warrants or rights (per share) |  |  |  |  |  |  |  |  |  |  | $ 10.00
Class of warrant or right, issued in private placement |  |  |  |  |  | 2,344,899 |  |  |  |  |
2012 Activity [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Issuance of warrants, public offering (shares) |  |  |  |  | 5,502 |  |  |  |  |  |
Derivative liability, fair value, gross liability |  |  |  |  | $ 5,060 |  |  |  |  |  |
2011 Activity [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Issuance of warrants, public offering (shares) |  |  |  |  | 14 |  |  |  |  |  |
Derivative liability, fair value, gross liability |  |  |  |  | $ 0 |  |  |  |  |  |
Change in fair value of derivative |  |  |  |  | $ (2,133,820) | 7,845,214 |  |  |  |  |
2011 Activity [Member] | Warrant [Member] | May 2011 Offering [Member] |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Issuance of warrants, public offering (shares) |  |  |  |  | 680 |  |  |  |  |  |
2014 Warrants [Member] |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Class of warrant or right, discount on exercise price of warrants or rights (percentage) |  | 26.00% |  |  |  |  | 26.00% |  |  |  |
Proceeds from warrant exercises (dollars) |  | $ 8,760,805 |  |  |  |  |  |  |  |  |
2014 Warrants [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Exercise of warrants (shares) |  | 1,392,832 |  |  |  |  |  |  |  |  |
Class of warrant or right, issued in private placement |  |  |  |  |  | $ 12,382,216 |  |  |  |  |
Fair value of warrants exercised |  | $ (5,348,408) |  |  |  |  |  |  |  |  |
Binomial Lattice Option Valuation Technique [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Fair market value of asset (per share) |  | $ 8.40 |  |  |  | $ 5.60 |  |  |  |  |
Exercise price (per share) |  |  |  |  | $ 25.00 |  |  |  |  |  |
Term (in years) | [2] | 3 years 6 months |  |  | 1 year 8 months |  |  |  |  |  |
Implied expected life (in years) | [3] | 3 years 6 months |  |  | 1 year 8 months |  |  |  |  |  |
Fair Value Assumptions, Expected Volatility Rate | [4] |  |  |  | 83.00% |  |  |  |  |  |
Equivalent volatility (percentage) | [3] | 47.00% |  |  | 83.00% |  |  |  |  |  |
Risk-free interest rate range of inputs (percentage) | [5] | 1.08% |  |  | 1.06% |  |  |  |  |  |
Equivalent risk-free interest rate (percentage) | [3] | 1.08% |  |  | 1.06% |  |  |  |  |  |
Minimum [Member] | Binomial Lattice Option Valuation Technique [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Exercise price (per share) |  | $ 5.00 |  |  |  | $ 7.00 |  |  |  |  |
Term (in years) | [2] |  |  |  |  | 2 years 8 months |  |  |  |  |
Implied expected life (in years) | [3] |  |  |  |  | 2 years 8 months |  |  |  |  |
Fair Value Assumptions, Expected Volatility Rate | [4] | 41.00% |  |  |  | 42.00% |  |  |  |  |
Equivalent volatility (percentage) | [3] |  |  |  |  | 48.00% |  |  |  |  |
Risk-free interest rate range of inputs (percentage) | [5] |  |  |  |  | 1.10% |  |  |  |  |
Equivalent risk-free interest rate (percentage) | [3] |  |  |  |  | 1.10% |  |  |  |  |
Maximum [Member] | Binomial Lattice Option Valuation Technique [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Exercise price (per share) |  | $ 10.00 |  |  |  | $ 25.00 |  |  |  |  |
Term (in years) | [2] |  |  |  |  | 4 years 2 months |  |  |  |  |
Implied expected life (in years) | [3] |  |  |  |  | 4 years 2 months |  |  |  |  |
Fair Value Assumptions, Expected Volatility Rate | [4] | 50.00% |  |  |  | 71.00% |  |  |  |  |
Equivalent volatility (percentage) | [3] |  |  |  |  | 54.00% |  |  |  |  |
Risk-free interest rate range of inputs (percentage) | [5] |  |  |  |  | 1.38% |  |  |  |  |
Equivalent risk-free interest rate (percentage) | [3] |  |  |  |  | 1.38% |  |  |  |  |
[1] | The fair market value of the asset was determined by using the Company's closing stock price as reflected in the over-the-counter market.
[2] | The term is the contractual remaining term, allocated among twelve equal intervals for purposes of calculating other inputs, such as volatility and risk-free rate.
[3] | The implied expected life, and equivalent volatility and risk-free interest rate amounts are derived from the binomial.
[4] | The Company does not have a market trading history upon which to base its forward-looking volatility. Accordingly, the Company selected peer companies that provided a reasonable basis upon which to calculate volatility for each of the intervals described in (2), above.
[5] | The risk-free rates used for inputs represent the yields on zero coupon U.S. Government Securities with periods to maturity consistent with the intervals described in (2), above.

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