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SHARE CAPITAL - Options outstanding by exercise price (Details)
 12 Months Ended
Dec. 31, 2021
Options
$ / shares
Dec. 31, 2020
Options
$ / shares
Dec. 31, 2019
Options
$ / shares
Options outstanding by exercise price      
Options outstanding 7,103,151 3,077,148 1,051,665
Options exercisable 1,878,532 1,081,760 398,596
$4.10      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares   $ 4.10 $ 4.10
Options outstanding   481,150 561,050
Weighted average remaining term (yrs)   6 years 2 months 23 days 7 years 2 months 23 days
Options exercisable   251,550 140,450
Weighted average remaining term (yrs)   6 years 2 months 23 days 7 years 2 months 23 days
$5.00      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares     $ 5.00
Options outstanding     130,950
Weighted average remaining term (yrs)     7 years 4 months 28 days
Options exercisable     32,738
Weighted average remaining term (yrs)     7 years 4 months 28 days
$8.80      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares     $ 8.80
Options outstanding     88,800
Weighted average remaining term (yrs)     6 years 11 months 1 day
Options exercisable     59,242
Weighted average remaining term (yrs)     6 years 11 months 1 day
$27.20      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares     $ 27.20
Options outstanding     263,250
Weighted average remaining term (yrs)     6 years 9 months
Options exercisable     162,268
Weighted average remaining term (yrs)     6 years 9 months
$27.30 - $9,276.86      
Options outstanding by exercise price      
Options outstanding 448,625   7,615
Weighted average remaining term (yrs) 6 years 5 months 23 days   4 years 8 months 15 days
Options exercisable 228,813   3,898
Weighted average remaining term (yrs) 6 years 5 months 23 days   3 years 8 months 8 days
$27.30 - $9,276.86 | Minimum      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares     $ 27.30
$27.30 - $9,276.86 | Maximum      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares     $ 9,276.86
$2.11      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares $ 2.11 $ 2.11  
Options outstanding 298,750 486,875  
Weighted average remaining term (yrs) 6 years 8 months 23 days 7 years 8 months 19 days  
Options exercisable 153,250 138,125  
Weighted average remaining term (yrs) 6 years 8 months 23 days 7 years 8 months 19 days  
$2.17      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares $ 2.17 $ 2.17  
Options outstanding 585,000 695,000  
Weighted average remaining term (yrs) 6 years 9 months 7 days 7 years 9 months 3 days  
Options exercisable 292,500 173,750  
Weighted average remaining term (yrs) 6 years 9 months 7 days 7 years 9 months 3 days  
$2.27      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares   $ 2.27  
Options outstanding   1,500  
Weighted average remaining term (yrs)   7 years 7 months 9 days  
Options exercisable   1,500  
Weighted average remaining term (yrs)   7 years 7 months 9 days  
$2.42      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares $ 2.42 $ 2.42  
Options outstanding   640,000  
Weighted average remaining term (yrs)   7 years 5 months 19 days  
Options exercisable   176,032  
Weighted average remaining term (yrs)   7 years 5 months 19 days  
$2.18 - $2.42 | Minimum      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares 0.84    
$3.35      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares   $ 3.35  
Options outstanding   493,766  
Weighted average remaining term (yrs)   7 years 18 days  
Options exercisable   133,495  
Weighted average remaining term (yrs)   7 years 18 days  
$4.11 - $3,878.39      
Options outstanding by exercise price      
Options outstanding   278,857  
Weighted average remaining term (yrs)   6 years 25 days  
Options exercisable   207,308  
Weighted average remaining term (yrs)   6 years 3 days  
$4.11 - $3,878.39 | Minimum      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares   $ 4.11  
$4.11 - $3,878.39 | Maximum      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares   $ 3,878.39  
$0.60      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares $ 0.60    
Options outstanding 1,710,050    
Weighted average remaining term (yrs) 7 years 11 months 15 days    
Options exercisable 339,910    
Weighted average remaining term (yrs) 7 years 11 months 15 days    
$0.72      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares $ 0.72    
Options outstanding 132,000    
Weighted average remaining term (yrs) 7 years 11 months 1 day    
Options exercisable 0    
$0.84      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares $ 0.84    
Options outstanding 551,000    
Weighted average remaining term (yrs) 7 years 7 months 13 days    
Options exercisable 0    
$1.38      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares $ 1.38    
Options outstanding 3,040,240    
Weighted average remaining term (yrs) 7 years 2 months 15 days    
Options exercisable 619,760    
$2.43 - $1,504      
Options outstanding by exercise price      
Options outstanding 337,486    
Weighted average remaining term (yrs) 5 years 5 months 8 days    
Options exercisable 244,299    
Weighted average remaining term (yrs) 5 years 3 months 29 days    
$2.43 - $1,504 | Minimum      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares $ 2.43    
$2.43 - $1,504 | Maximum      
Options outstanding by exercise price      
Weighted average exercise price | $ / shares $ 1,504