Stockholders' Equity

6 Months Ended

Jun. 30, 2014

Stockholders' Equity Note [Abstract]

Stockholders' Equity Note Disclosure [Text Block]

7. Stockholders’ Equity

During the six months ended June 30, 2014, the Company issued 6,583 shares of common stock, in connection with the exercise of stock options, for proceeds of approximately $4,000. The Company also issued 232,619 shares of common stock, in connection with cashless warrant exercises for the six months ended June 30, 2014.