Debt (Tables)

3 Months Ended

Mar. 31, 2017

Debt Disclosure [Abstract]

Summary of Carrying Amount of Term Loan

The carrying amounts of the Company’s Term Loan as of March 31, 2017 and December 31, 2016 were as follows:

	Hercules Term Loan			Debt Discount			Issuance Costs			Total
Balance — January 1, 2017	$	5,954		$	(136	)	$	(15	)	$	5,803
Accretion of debt discount					27						27
Accretion of issuance costs								4			4
Principal payments		(651	)								(651	)
Balance — March 31, 2017	$	5,303		$	(109	)	$	(11	)		5,183
Current portion of debt, net of debt discount and issuance costs											2,661
Long term portion of debt, net of current portion										$	2,522

Schedule of Future Principle Payments

Future principal payments in connection with the Term Loan are as follows:

Remainder of 2017	$	2,044
2018		3,259
	$	5,303