Net Loss per Share (Tables)

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Instruments Excluded from Calculation of Diluted Net Loss Per Share

The following instruments (in thousands) were excluded from the calculation of diluted net loss per share because their effects would be antidilutive:

	Three months ended March 31,
	2020	2019
Stock-based awards	16,662	12,431
Healios warrant – see Note 6	—	17,000
Total	16,662	29,431