Subsequent Event

6 Months Ended

Jun. 30, 2018

Subsequent Event [Abstract]

Subsequent Event

Note 9. Subsequent Event

On July 2, 2018, the Company closed an underwritten public offering of 7,766,990 shares of its common stock and warrants to purchase up to an aggregate of 3,106,796 shares of its common stock at a combined at the market offering price of $1.03. In addition, at the closing the underwriters exercised the over-allotment option to purchase additional warrants to purchase 466,019 shares of common stock. The warrants have a per share exercise price of $2.25 and will expire forty-two months from the date of issuance. On July 9, 2018, the underwriters exercised the over-allotment option to purchase 1,165,048 additional shares of common stock. The total gross proceeds to the Company from the at the market offering were approximately $9.2 million before deducting underwriting discounts and commissions and other estimated offering expenses.