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BASIC AND DILUTED LOSS PER COMMON SHARE
 12 Months Ended
Dec. 31, 2022
Earnings Per Share [Abstract]  
Basic and Diluted Loss Per Common Share BASIC AND DILUTED INCOME (LOSS) PER COMMON SHARE
The following is a reconciliation of weighted average common shares outstanding:
Years Ended December 31,
202220212020
Issued shares at beginning of period 156,262,199 134,311,033 100,735,889 
  Effect of stock options exercised155,509 474,072 12,934 
  Effect of shares issued for settlement of vesting of restricted stock units335,546 443,364 452,932 
  Effect of shares issued for settlement of exercises of stock appreciation rights2,679 2,316 — 
  Effect of shares issued for exercise of share purchase warrants— 1,737,981 — 
  Shares issued for consulting services16,064 35,933 74,672 
  Effect of shares issued in public offerings571,253 9,899,825 19,891,709 
Weighted average common shares outstanding157,343,250 146,904,524 121,168,136 

Basic and diluted income (loss) per common share
The calculation of basic and diluted income (loss) per share after adjustment for the effects of all potential dilutive common shares, calculated as follows:
 Years Ended December 31,
 202220212020
Net income (loss) attributable to owners of the Company$(59,849)$1,541 $(27,776)
Basic weighted average common shares outstanding157,343,250 146,904,524 121,168,136 
Dilutive impact of stock options, restricted stock units, and warrants— 2,816,593 — 
Diluted weighted average common shares outstanding 157,343,250 149,721,117 121,168,136 
Basic and diluted net income (loss) per common share$(0.38)$0.01 $(0.23)
For the years ended December 31, 2022, 2021 and 2020, 1.52 million, 0.06 million and 6.87 million stock options, restricted stock units, and warrants, respectively, and the potential conversion of the Convertible Debentures have been excluded from the calculation of diluted net income (loss) per common share as their effect would have been anti-dilutive. In addition, the Company excluded stock appreciation rights of 2.45 million, 1.67 million, and 1.72 million for the years ended December 31, 2022, 2021, and 2020, respectively as they are contingently issuable based on specified market prices of the Company’s stock which were not achieved as of the end of each period.