Debt (Tables)

6 Months Ended

Jun. 30, 2016

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

The following table summarizes the Company's outstanding borrowings:

(in thousands)	June 30, 2016			December 31, 2015
2016 Credit and Security Agreement (2013 Loan and Security Agreement as of December 31, 2015)	$	3,277		$	3,278
Term Loan	4,046			5,000
Discount on Term Loan	(1,977		)	(2,785		)
Unamortized debt issuance costs related to Term Loan	(204		)	(163		)
Total debt	5,142			5,330
Short-term portion	(5,142		)	(5,330		)
Total long-term debt, net	$	—		$	—

Summary of Components of Interest Expense

The following table summarizes the components of interest expense for the three and six month periods endedJune 30, 2016 and 2015:

(in thousands)	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2016		2015		2016		2015
Interest expense on Term Loan (interest at LIBOR, plus 14%)	$	161	$	154	$	341	154
Interest expense on 2013 Loan and Security Agreement	16		4		49		4
Interest expense on 2016 Credit and Security Agreement	48		—		48		—
Accretion of termination fees (over term of Term Loan at rate of 8%)	45		27		91		27
Amortization of debt issuance costs	62		197		123		280
Write-off of debt issuance costs related to 2013 Loan and Security Agreement	282		—		282		—
Amortization of debt discount associated with the warrants	397		244		807		244
Mark to market of the Additional Warrant	—		—		59		—
Total	$	1,011	$	626	$	1,800	$	709