CONVERTIBLE NOTES PAYABLE

6 Months Ended

Jun. 30, 2015

Debt Disclosure [Abstract]

CONVERTIBLE NOTES PAYABLE

NOTE 7—CONVERTIBLE NOTES PAYABLE

In April 2014, the Company entered into a note purchase agreement with investors for the sale of an aggregate of $50.0 million of convertible promissory notes (the “2014 Notes”). The 2014 Notes accrued interest at a rate of 6.0% per annum.

Pursuant to the 2014 Notes agreement, in a qualified initial public offering the 2014 Notes, including interest thereon, automatically convert into a number of shares of common stock at a per share conversion price equal to (1) 90% of the initial public offering price, if the qualified initial public offering occurs prior to December 31, 2014. In June 2014, as a result of the Company’s initial public offering, the $50.0 million principal amount of the 2014 Notes plus accrued interest of approximately $0.5 million automatically converted into 3,300,735 shares of the Company’s common shares at a conversion price of $15.30 per share which was a discount of 10% to the initial offering price of $17.00. The Company recognized a charge to interest expense and additional paid-in capital of $5,611,725 related to this beneficial conversion feature at the time of conversion.