11.  Subsequent Events



2016 Warrant Exercise



Between September 29 and October 31, 2016, we conducted an offer to the holders of our outstanding common stock purchase warrants pursuant to which our warrant holders were permitted to exercise their warrants at a reduced exercise price for a period expiring on October 31, 2016. At the commencement of the warrant offer, there were warrants outstanding that entitled their holders to purchase 8,551,168 shares of our common stock at exercise prices of $1.00 and $1.20 per share. The holders of all warrants were allowed to conduct cash-based exercises of their warrants at an exercise price of $0.70 per share up through October 31, 2016. We undertook this limited-time warrant exercise price reduction in order to raise additional capital without incurring further potential dilution to our stockholders. In addition, through the warrant holders’ acceptance of our offer, we could significantly reduce the number of outstanding warrants and thereby simplify our capital structure. As of the close of the warrant offer, there have been 3,329,990 warrants exercised to purchase 3,329,990 shares of our common stock, resulting in additional capital of $2,330,993. The warrant offer was conducted by our management and there were no commissions paid by us in connection with the solicitation.