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Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2013
Subsequent Events	Note 11. Subsequent Events Subsequent to March 31, 2013, Opexa granted its directors, officers and employees options to purchase an aggregate of 263,572 shares of common stock with a fair value of $451,915 at an exercise price of $1.75. Subsequent to March 31, 2013, Opexa issued to its officers an aggregate of 78,571 shares of restricted common stock with a fair value of $1.75 per share.