Note 4 - Property and Equipment, Net (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

Property, Plant and Equipment [Table Text Block]

	As of
	June 30, 2019			December 31, 2018
Computer equipment and software	$	225		$	211
Furniture, fixtures, and other		365			365
Laboratory equipment		514			514
		1,104			1,090
Accumulated depreciation		(1,021	)		(827	)
Property and equipment, net	$	83		$	263