Loss Per Common Share

6 Months Ended

Jun. 30, 2020

Loss Per Common Share [Abstract]

Loss Per Common Share

5.  Loss per Common Share

Basic loss per common share is determined based on the weighted-average number of common shares outstanding during each period.  Diluted loss per common share is the same as basic loss per common share as all common share equivalents are excluded from the calculation, as their effect is anti-dilutive.

We have shares underlying outstanding options, warrants, unvested RSUs and convertible notes that were excluded from the computation of diluted loss per share as their effect would have been anti-dilutive.  These common share equivalents at June 30, 2020 and 2019 were as follows (in thousands):

	June 30,
	2020		2019
Options outstanding		12,248		1,082
Warrants outstanding		14,850		11,700
Unvested RSUs		394		-
Shares underlying convertible notes		23,807		11,096
		51,299		23,878