17. Loss Per Share

The following table presents the calculation of loss per share for the years ended December 31, 2020 and 2019:

In thousands, except per share data	2020		2019
Numerator:
Net loss, as reported	$	(4,843)	$	(1,402)
Dividends paid on preferred shares		-		(80)
Change in dividends accumulated on preferred shares		-		41
Net loss attributable to common Shares	$	(4,843)	$	(1,441)
Denominator:
Weighted average shares outstanding		13,696		11,417
Basic and diluted loss per share	$	(0.35)	$	(0.13)

At December 31, 2020 and 2019, there were no dividends accumulated on the Company’s SBCPS.

Basic loss per common share is computed by dividing net loss attributable to common shares by the weighted average number of common shares outstanding for the period. Diluted loss per common share is computed by dividing net loss attributable to common shares, by the weighted average number of common shares outstanding, adjusted for shares that would be assumed outstanding after warrants and stock options vested under the treasury stock method.

At December 31, 2020 and 2019, outstanding warrants exercisable into 1.8 million and 260,000 shares of Common Stock, respectively, were excluded from the calculation of diluted loss per share because their impact would have been anti-dilutive.