COMMON STOCK AND WARRANTS - Note 7	3 Months Ended
Mar. 31, 2017
Common Stock And Warrants - Note 7
COMMON STOCK AND WARRANTS - Note 7	7. COMMON STOCK AND WARRANTS In December 2016, we raised approximately $2.1 million before issuance costs of approximately $18,000 through a registered direct offering of 2.0 million shares of our common stock. In December 2016, we raised approximately $13.0 million before issuance costs of approximately $1.2 million through an underwritten public offering of approximately 12.1 million shares of our common stock. In September 2016, we entered into a Common Stock Purchase Agreement with Lincoln Park granting us the right to sell shares of our common stock having an aggregate value of up to $17.0 million. Under the terms of the agreement, Lincoln Park made an initial purchase of $2.0 million in shares of common stock at a purchase price of $1.50 per share. Subject to various limitations and conditions set forth in the agreement, including a $1.00 minimum stock price, we may sell up to an additional $15.0 million in shares of common stock, from time to time, at our sole discretion to Lincoln Park over a twenty-four month period beginning September 2016. In consideration for entering into the agreement, we issued 522,556 shares of common stock, having a value of $721,000 based on the closing stock price on the date of grant, to Lincoln Park as a commitment fee and we incurred an additional $133,000 in issuance costs. As of March 31, 2017, $15.0 million in shares of common stock remain available for sale under our Common Stock Purchase Agreement. In March 2016, we raised approximately $6.9 million before issuance costs of approximately $650,000 through an underwritten public offering of approximately 4.1 million shares of our common stock. The offering included the exercise in full of the underwriter's option to purchase up to an additional 529,411 shares of our common stock. In May 2015, we entered into an At-The-Market (ATM) agreement with Meyers Associates, L.P. Under the terms of the agreement, we may, from time to time, at our discretion, offer and sell shares of our common stock having an aggregate value of up to $6.0 million. As of March 31, 2017, $2.9 million in shares of common stock remain available for sale under our ATM agreement.

COMMON STOCK AND WARRANTS - Note 7

3 Months Ended

Mar. 31, 2017

7. COMMON STOCK AND WARRANTS

In December 2016, we raised approximately $2.1 million before issuance costs of approximately $18,000 through a registered direct offering of 2.0 million shares of our common stock.

In December 2016, we raised approximately $13.0 million before issuance costs of approximately $1.2 million through an underwritten public offering of approximately 12.1 million shares of our common stock.

In September 2016, we entered into a Common Stock Purchase Agreement with Lincoln Park granting us the right to sell shares of our common stock having an aggregate value of up to $17.0 million. Under the terms of the agreement, Lincoln Park made an initial purchase of $2.0 million in shares of common stock at a purchase price of $1.50 per share. Subject to various limitations and conditions set forth in the agreement, including a $1.00 minimum stock price, we may sell up to an additional $15.0 million in shares of common stock, from time to time, at our sole discretion to Lincoln Park over a twenty-four month period beginning September 2016. In consideration for entering into the agreement, we issued 522,556 shares of common stock, having a value of $721,000 based on the closing stock price on the date of grant, to Lincoln Park as a commitment fee and we incurred an additional $133,000 in issuance costs. As of March 31, 2017, $15.0 million in shares of common stock remain available for sale under our Common Stock Purchase Agreement.

In March 2016, we raised approximately $6.9 million before issuance costs of approximately $650,000 through an underwritten public offering of approximately 4.1 million shares of our common stock. The offering included the exercise in full of the underwriter's option to purchase up to an additional 529,411 shares of our common stock.

In May 2015, we entered into an At-The-Market (ATM) agreement with Meyers Associates, L.P. Under the terms of the agreement, we may, from time to time, at our discretion, offer and sell shares of our common stock having an aggregate value of up to $6.0 million. As of March 31, 2017, $2.9 million in shares of common stock remain available for sale under our ATM agreement.