Net Loss per Share

The Company applies the two-class method to calculate its basic and diluted net loss per share as both classes of its voting shares are participating securities with equal participation rights and are entitled to receive dividends on a share for share basis.

The following table summarizes the reconciliation of the basic weighted average number of shares outstanding and the diluted weighted average number of shares outstanding:



	December 31, 2018	December 31, 2017
Basic and diluted weighted average number of shares outstanding	105,671,839	95,774,897
The following items have been excluded from the diluted weighted average number of shares outstanding because they are anti-dilutive:
Stock options	5,476,790	7,353,546
Restricted share units	2,473,665	2,498,678
	7,950,455	9,852,224

In the years ended December 31, 2018 and 2017, the Company was in a loss position and therefore diluted loss per share is equal to basic loss per share.