Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events

Subsequent Events
9 Months Ended
Sep. 30, 2018
Subsequent Events [Abstract]  
Subsequent Events Subsequent Events 
In addition to the subsequent events discussed elsewhere in these notes, see below for a discussion of our subsequent events occurring after September 30, 2018.

 On October 4, 2018, the Company entered into a purchase agreement ("LP Purchase Agreement") with Lincoln Park
Capital Fund, LLC ("Lincoln Park" or "LPC") and a registration rights agreement (the "LP Registration Agreement") pursuant
to which Lincoln Park has agreed to purchase from the Company up to an aggregate of $20.0 million worth of the Company’s
common stock.