Quarterly report pursuant to Section 13 or 15(d)

Senior Convertible Notes

Senior Convertible Notes
6 Months Ended
Jun. 30, 2015
Debt Disclosure [Abstract]  
Senior Convertible Notes

6. Senior Convertible Notes

The Company issued approximately $15.0 million in aggregate principal amount of its 8.00% Convertible Notes due May 31, 2015 (the “Convertible Notes”) from June 2013 through June 2014. On August 1, 2014, in conjunction with the closing of the Company’s IPO, the principal amount of the Convertible Notes, and all accrued and unpaid interest thereon, automatically converted into 5,109,988 shares of common stock. Upon the closing of the offering, the Company accelerated the amortization of the remaining debt discount balance to interest expense.