Warrant	9 Months Ended
Sep. 30, 2017
Equity [Abstract]
Warrant Disclosure [Text Block]	8. Warrants In connection with the License Agreement, the Company issued to ABX on September 29, 2017, two warrants to purchase up to 4,000,000 shares of the Company’s common stock, at a per share exercise price of $1.39, which is equal to the average closing price of the Company’s common stock during the 30 calendar days prior to September 29, 2017. The Company accounted for the warrants at fair value in stockholders’ equity. The warrants contain a conversion feature in the case of certain mergers or consolidations by the Company. Immediately upon issuance, ABX assigned the warrants to an affiliate and certain related parties, which exercised a warrant for 3,278,000 shares on September 29, 2017, resulting in proceeds to the Company in the amount of approximately $4.6 million. The remaining warrant, covering an aggregate of 722,000 shares, remained outstanding as of September 30, 2017, is exercisable until September 29, 2027, and is subject to restrictions on transfer. This warrant was valued using the Black-Scholes model utilizing a ten-year term, the Company’s historic volatility of 91.1%, and an interest rate of 2.28% which is the risk free interest rate of a treasury bond with the same term as the warrants. As of September 30, 2017, there was also outstanding a separate warrant to purchase 34,647 shares of the Company’s common stock, exercisable on or before December 31, 2017 at an exercise price per share of $8.12. This warrant does not contain a conversion feature.

8. Warrants

In connection with the License Agreement, the Company issued to ABX on September 29, 2017, two warrants to purchase up to 4,000,000 shares of the Company’s common stock, at a per share exercise price of $1.39, which is equal to the average closing price of the Company’s common stock during the 30 calendar days prior to September 29, 2017. The Company accounted for the warrants at fair value in stockholders’ equity. The warrants contain a conversion feature in the case of certain mergers or consolidations by the Company. Immediately upon issuance, ABX assigned the warrants to an affiliate and certain related parties, which exercised a warrant for 3,278,000 shares on September 29, 2017, resulting in proceeds to the Company in the amount of approximately $4.6 million. The remaining warrant, covering an aggregate of 722,000 shares, remained outstanding as of September 30, 2017, is exercisable until September 29, 2027, and is subject to restrictions on transfer. This warrant was valued using the Black-Scholes model utilizing a ten-year term, the Company’s historic volatility of 91.1%, and an interest rate of 2.28% which is the risk free interest rate of a treasury bond with the same term as the warrants.

As of September 30, 2017, there was also outstanding a separate warrant to purchase 34,647 shares of the Company’s common stock, exercisable on or before December 31, 2017 at an exercise price per share of $8.12. This warrant does not contain a conversion feature.