Subsequent and Other Events
12 Months Ended
Dec. 31, 2016
Subsequent Events [Abstract]  
Subsequent and Other Events

J. Subsequent and Other Events

Equity Offering

In February 2017, we completed a public offering generating net proceeds of approximately $20.9 million through the issuance of 22,772,300 shares of common stock at an offering price of $1.01 per share.

Evaluation & Option Agreement

In January 2017, we received an option fee related to an agreement that was entered into in December 2016 with a global leader in the animal health business segment to evaluate our cell therapy technology for application in an animal health area. Under the terms of the agreement, we received the payment in exchange for an exclusive period to evaluate our cell therapy technology with an option to negotiate for a license for the development and commercialization of the technology for this animal health area.