Common Stock	3 Months Ended
Mar. 31, 2017
Equity [Abstract]
Common Stock	9. COMMON STOCK *Common Stock Issued, Net of Issuance Costs* Confidentially Marketed Public Offering On January 19, 2017, the Company completed a registered public offering for net proceeds of $8.9 million. The Company sold 1,399,140 shares of common stock at a price of $2.01 per share and 3,426,731 pre-funded warrants at a price of $2.00 per warrant. The warrants have an exercise price of $0.01. All of the pre-funded warrants have been exercised. Registered Direct Offering On February 16, 2017, the Company completed a registered direct offering for net proceeds of $4.5 million with Aspire Capital Fund LLC (“Aspire Capital”) whereby Aspire Capital purchased 2,100,000 shares of common stock at a price of $1.58 and 748,101 pre-funded common stock purchase warrants at a price of $1.57. The warrants have an exercise price of $0.01 per share and a term of three years. All of the pre-funded warrants have been exercised. *Common Stock Issued for Investor Relations Fees* On February 28, 2017, the Company issued 150,000 shares with a fair market value of $0.3 million or $2.00 per share as partial consideration for investor relations services that will be provided to the Company over the next 12 months.

Common Stock

3 Months Ended

Mar. 31, 2017

9. COMMON STOCK

Common Stock Issued, Net of Issuance Costs

Confidentially Marketed Public Offering

On January 19, 2017, the Company completed a registered public offering for net proceeds of $8.9 million. The Company sold 1,399,140 shares of common stock at a price of $2.01 per share and 3,426,731 pre-funded warrants at a price of $2.00 per warrant. The warrants have an exercise price of $0.01. All of the pre-funded warrants have been exercised.

Registered Direct Offering

On February 16, 2017, the Company completed a registered direct offering for net proceeds of $4.5 million with Aspire Capital Fund LLC (“Aspire Capital”) whereby Aspire Capital purchased 2,100,000 shares of common stock at a price of $1.58 and 748,101 pre-funded common stock purchase warrants at a price of $1.57. The warrants have an exercise price of $0.01 per share and a term of three years. All of the pre-funded warrants have been exercised.

Common Stock Issued for Investor Relations Fees

On February 28, 2017, the Company issued 150,000 shares with a fair market value of $0.3 million or $2.00 per share as partial consideration for investor relations services that will be provided to the Company over the next 12 months.