SHAREHOLDERS' EQUITY

3 Months Ended

Mar. 31, 2017

Stockholders' Equity Note [Abstract]

SHAREHOLDERS' EQUITY

Shareholders' Equity

At-the-Market Sales Agreement

On October 10, 2016, we entered into our at-the-market sales agreement with Cowen (ATM Agreement), pursuant to which we may sell shares of our common stock through Cowen and Company, LLC (Cowen), as sales agent, in registered transactions from our shelf registration statement filed in June 2015, for aggregate proceeds of up to $25.0 million.  Shares of common stock sold under the ATM are to be sold at market prices.  We will pay up to 3% of the gross proceeds to Cowen as a commission. 357,856shares of common stock have been sold to date under the ATM Agreement for net proceeds of $0.8 million and as of March 31, 2017 had remaining capacity of approximately $24.2 million.