The company has granted a 30-day option to the underwriters to purchase up to an additional 15% of the offering to cover over-allotments, and the underwriters have exercised the over-allotment option for 525,000 series E warrants. The net proceeds to the company of the offering, which included the exercise in full of the over-allotment option for the warrants, were $6.8 million after payment of underwriting discounts and commissions, but excluding estimated offering expenses.