Subsequent Events	6 Months Ended
Jun. 30, 2013
Subsequent Events	Note 11. Subsequent Events On July 1, 2013, 123,231 shares of common stock were issued to holders of the July 2012 Notes as payment of accrued interest. On August 13, 2013, Opexa closed an underwritten public offering of 12 million shares of common stock at a price to the public of $1.50 per share for gross proceeds of $18 million. The net proceeds to Opexa were approximately $16.2 million, after deducting underwriting discounts and commissions and other estimated offering expenses. Opexa also granted the underwriters a 30-day option to purchase up to an additional 1.8 million shares of common stock to cover over-allotments, if any.

Subsequent Events

6 Months Ended

Jun. 30, 2013

Note 11. Subsequent Events

On July 1, 2013, 123,231 shares of common stock were issued to holders of the July 2012 Notes as payment of accrued interest.

On August 13, 2013, Opexa closed an underwritten public offering of 12 million shares of common stock at a price to the public of $1.50 per share for gross proceeds of $18 million. The net proceeds to Opexa were approximately $16.2 million, after deducting underwriting discounts and commissions and other estimated offering expenses. Opexa also granted the underwriters a 30-day option to purchase up to an additional 1.8 million shares of common stock to cover over-allotments, if any.