Warrants (Tables)

12 Months Ended

Dec. 31, 2019

Warrants

Schedule of Stockholders' Equity Note, Warrants or Rights

A summary of warrants outstanding and exercisable as of December 31, 2019 (in thousands, except as noted):

	Warrants Outstanding				Warrants Exercisable
		Weighted
		Average	Weighted			Weighted
		Remaining	Average			Average
	Number	Contractual	Exercise		Number	Exercise
Year Issued	Outstanding	Life	Price		Exercisable	Price
		(in years)	(per share)			(per share)
2016	6	2.0	$	466.26	6	$	466.26
2017	23	2.4		118.95	23		118.95
2018	120	4.2		19.20	120		19.20
2019	710	4.8		11.31	710		11.31
	859	4.7	$	18.67	859	$	18.67