Notes Payable (Tables)

12 Months Ended

Dec. 31, 2016

Debt

Summary of future principal payments on the notes payable

Future principal payments on the notes payable as of December 31, 2016 are as follows (in thousands):

Year ended December 31,
2017	$	1,286
2018		1,485
2019		1,015
2020		5,723
2021		22,893
Thereafter		17,171
Total before unamortized discount and issuance costs		49,573
Less: paid-in-kind interest		(5,782)
Less: unamortized discount and issuance costs		(3,018)
Total notes payable	$	40,773