Notes Payable (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Summary of Future Principal Payments Including Paid In-Kind Interest under Innovatus Loan Agreement

As of December 31, 2017 future principal payments, including paid in-kind interest, under the Innovatus Loan Agreement are as follows:

Years ending December 31,
(In thousands)
2018	$	4,788
2019		7,181
2020		2,394
Total	$	14,363