Stockholders' Equity
12 Months Ended
Dec. 31, 2016
Equity [Abstract]  
Stockholders' Equity

8. Stockholders’ Equity

As of the date of this filing the Company has on file a shelf registration statement that allows it to raise up to an additional $100.0 million from the sale of common stock, preferred stock, debt securities and/or warrants. Specific terms of any offering under the shelf registration statements and the securities involved would be established at the time of sale.

In October 2016, the Company entered into an At-The-Market Issuance Sales Agreement, or the ATM Agreement, with IFS Securities, Inc. (doing business as Brinson Patrick, a division of IFS Securities, Inc.), or BP, under which the Company may issue and sell up to $10.0 million of shares of its common stock from time to time. Under the ATM Agreement, the Company may deliver placement notices that will set the parameters for the sale of shares, including the number of shares to be issued, the time period during which sales are requested to be made, any limitation on the number of shares that may be sold in any one trading day and any minimum price below which sales may not be made. Subject to the terms and conditions of the ATM Agreement, BP may sell the shares only by methods deemed to be an “at the market” offering as defined in Rule 415 promulgated under the Securities Act of 1933, as amended, including without limitation sales made directly through the Nasdaq Capital Market, on any other existing trading market for our common stock or to or through a market maker. BP will use commercially reasonable efforts consistent with its normal trading and sales practices to sell the shares in accordance with the terms of the ATM Agreement and any applicable placement notice. The ATM Agreement may be terminated by the Company upon prior notice to BP or by BP upon prior notice to us, or at any time under certain circumstances, including but not limited to the occurrence of a material adverse effect on the Company. The Company has no obligation to sell any shares under the ATM Agreement, and both the Company and BP may at any time suspend the sale of shares under the ATM Agreement. To date the Company has not sold any shares of its common stock under the ATM Agreement.

On August 1, 2016, the Company entered into a stock purchase agreement with AnGes MG, Inc., or AnGes, an existing stockholder, to purchase 1,841,420 shares of the Company’s common stock in a private placement. The shares were sold at a price of $4.24 per share. Gross proceeds totaled approximately $7.8 million.   The private placement closed on August 2, 2016.  The shares are subject to a two-year lock-up period during which they may not be sold and AnGes has agreed to not increase its ownership position beyond 19.9% and to refrain from taking certain other actions with respect to the Company’s stock, subject to certain conditions. AnGes is entitled to have a representative attend meetings of the Company’s Board of Directors in a non-voting capacity and may in the future be entitled to have a representative appointed to the Company’s Board of Directors, subject to certain conditions. AnGes has also agreed to vote its shares in accordance with the recommendations of the Company’s Board of Directors for so long as it continues to hold a specified percentage of the Company’s outstanding common stock. The Company also agreed under certain circumstances in the future to register the private placement shares for resale by AnGes.

In March 2015, the Company entered into license and stock purchase agreements with Astellas, granting the Company an exclusive worldwide license to develop and commercialize a novel antifungal, VL-2397, formally known as ASP2397.  VL-2397 is a potential therapeutic for invasive fungal infections, including invasive aspergillosis.  Astellas received 86,121 shares of unregistered Company common stock and $250,000 in cash.  The $250,000 cash payment and the fair value of the common stock issued of $775,094 were included in research and development expenses during the year ended December 31, 2015.

In April 2014, the Company entered into an At-the-Market Issuance Sales Agreement, or the Sales Agreement, with Meyers Associates, L.P. (doing business as Brinson Patrick, a division of Meyers Associates, L.P.), or Brinson Patrick, under which the Company could issue and sell up to $25.0 million of shares of its common stock from time to time. During the year ended December 31, 2014, the Company sold 329,152 shares under the Sales Agreement and received gross proceeds of $4,067,751. There were no shares sold during the year ended December 31, 2015. This agreement expired in May 2015.