Notes Payable to Related Parties (Tables)

12 Months Ended

Dec. 31, 2018

Notes payable to related parties consisted of the following at December 31, 2018 and 2017 (in thousands):

	December 31,
	2018		2017
Class B promissory notes	$	—	$	200
Class C promissory notes		—		667
0% promissory note due 3/31/19		—		44
8% secured promissory notes due 3/31/19		—		1,050
8% promissory notes due 3/31/19		—		2,031
Total face amount		—		3,992
Less unamortized discount		—		(236	)
Total carrying value		—		3,756
Amount classified as current		—		441
Amount classified as long-term	$	—	$	3,315