Controlled Equity Offering and Public Offering of Common Stock (Tables)

6 Months Ended

Jun. 30, 2015

Equity [Abstract]

Schedule of Total Sales under Sales Agreement

The following table summarizes the total sales under the Sales Agreement for the periods indicated (in thousands, except per share amounts):

	Six Months Ended June 30, 2015 (Unaudited)
Total shares of common stock sold		2,014.3
Average price per share	$	3.25
Gross proceeds	$	6,546
Commissions earned by Cantor	$	197
Other issuance costs	$	259