Stockholders' Equity (Deficit)

6 Months Ended

Jun. 30, 2015

Stockholders' Equity Note [Abstract]

Stockholders' Equity Note Disclosure [Text Block]

7. Stockholders’ Equity (Deficit)

During the six months ended June 30, 2015, the Company issued 655,321 shares of common stock to Prev ABR LLC, with a fair value of $1,350,000, that was recorded as research and development expense, in consideration for achieving the first three milestones as set forth in the Asset Purchase Agreement dated November 28, 2012. In lieu of receiving any cash payment for achieving the first three milestones, Prev ABR LLC exercised its option to receive the milestone payments in shares of the Company’s common stock. The number of shares of common stock issued upon achievement of each milestone was based upon the average of the opening and closing prices of the Company’s stock on the date each milestone was achieved as specified in the Asset Purchase Agreement. Also, during the six months ended June 30, 2015, the Company issued 10,842 shares of common stock, in connection with the exercise of stock options, for proceeds of approximately $1,000.