Notes Payable (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Summary of Notes Payable

Notes payable, net of related discounts, consists of the following:

	December  31, 2015
			2014
	(in thousands)
Convertible Notes	$	37,450	$	35,332
Loan Agreement		22,801		8,307
Reimbursement Notes		755		636
Bridge Notes		166		271
		61,172		44,546
Less: Current portion		7,000		—
Non-current Notes payable, net of related discounts	$	54,172	$	44,546

Carrying Value of MHR Obligations

The carrying value of the MHR Obligations is comprised of the following:

	December 31,
	2015			2014
	(in thousands)
Amended and Restated Convertible Notes	$	46,542		$	40,897
Loan Agreement		22,801			8,307
Amended and Restated Reimbursement Notes		755			683
Amended and Restated Bridge Notes		2,115			1,855
Unamortized discounts		(11,041	)		(7,196	)
	$	61,172		$	44,546