12. NET LOSS PER SHARE:

Basic net loss per share and diluted net loss per share for the years ended December 31, 2021, 2020 and 2019 have been computed by dividing the net loss attributable to common shareholders for each respective period by the weighted average number of shares outstanding during that period. All outstanding warrants and options and restricted stock awards representing approximately 9,902,000, 7,786,000, and 6,503,000 incremental shares at December 31, 2021, 2020 and 2019, respectively, have been excluded from the computation of diluted net loss per share as they are anti-dilutive.