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Subsequent Event	9 Months Ended
Subsequent Event	Sep. 30, 2015
Subsequent Events [Abstract]
Subsequent Event	12. Subsequent Event During the period October 1, 2015 through November 5, 2015, the Company sold an additional 372,058 shares pursuant to the Sales Agreement with Cantor Fitzgerald & Co. The aggregate net proceeds received by the Company were approximately $3.9 million, net of commissions.