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Share capital (Tables)
12 Months Ended
Dec. 31, 2021
Disclosure of reserves within equity [abstract]  
Schedule of changes in share capital
  Class A shares     Class B shares     Warrants  
  #   $   #   $     #     $  
Balance, December 31, 2018 72   151,588     6,843,780     51,093,434     546,212     3,341,826  
Shares issued [a] [b] [c] [d] -   -     408,651     8,681,103     -     -  
    of Prismic Pharmaceuticals, Inc. [e] -   -     510,940     12,361,657     67,598     1,420,407  
Stock options exercised -   -     -     -     -     -  
Share-based payments -   -     130,189     1,340,929     -     -  
Warrants exercised -   -     12,167     109,214     (12,167 )   (37,753 )
Warrants expired -   -     -     -     (134,192 )   (402,491 )
Balance, December 31, 2019 72   151,588     7,905,727     73,586,337     467,451     4,321,989  
Shares issued [g] [j] [k] [l] [n] [o] -   -     8,925,942     22,242,975     6,335,758     1,110,904  
Share-based payments [f] [h] [i] [m] -   -     2,307,569     6,663,479     -     -  
Share options exercised -   -     22,382     563,747     -     -  
Warrants expired -   -     -     -     (54,100 )   (463,935 )
Balance, December 31, 2020 72   151,588     19,161,620     103,056,538     6,749,109     4,968,958  
Shares issued [p] -   -     15,480,462     38,341,407     -     -  
Share-based payments [q] [r] [s] -   -     1,462,558     3,751,412     100,000     98,513  
Share cancellation [q] -   -     (156,278 )   -     -     -  
Lucid acquisition [t] -   -     4,502,392     7,023,732     112,162     70,563  
Warrants expired -   -     -     -     (4,476 )   (617 )
Balance, December 31, 2021 72   151,588     40,450,754     152,173,089     6,956,795     5,137,417  
Schedule of changes in warrants outstanding and weighted average exercise price
          Weighted average  
    Number of warrants     exercise price  
    #     C$  
Outstanding as at December 31, 2018   546,212     9.47  
Issued   67,598     10.45  
Exercised   (12,167 )   7.81  
Expired   (134,192 )   7.64  
Outstanding as at December 31, 2019   467,451     10.20  
Issued   6,335,758     5.27  
Expired   (54,100 )   4.97  
Outstanding as at December 31, 2020   6,749,109     5.62  
Issued   212,162     1.93  
Expired   (4,476 )   5.43  
Outstanding as at December 31, 2021   6,956,795     5.50  
Schedule of fair value assumptions of warrants outstanding
    2021     2020     2019  
Grant date share price   C$2.00 - C$2.04     C$2.58 - C$4.00     C$32.16  
Exercise price   C$1.53 - C$2.50     C$3.46 - C$5.80     C$2.61 - C$26.73  
Expected dividend yield   -     -     -  
Risk free interest rate   0.43% - 0.46%     0.32% 0.36%     1.41% - 1.52%  
Expected life   1.19 - 2 years     5 years     1.39 - 6.55 years  
Expected volatility   88% - 129%     118% - 121%     100%  
Schedule of number of warrants outstanding and exercise price
Warrants Outstanding  
    Exercise price     Number outstanding  
Expiry Date   C$     #  
May 24, 2022   18.09     163,535  
September 15, 2022   4.42     199,005  
November 30, 2022   1.21     46,242  
December 31, 2022   2.43     65,920  
May 20, 2023   16.08     7,311  
June 23, 2023   2.50     100,000  
July 24, 2023   13.07     3,357  
September 11, 2023   5.43     22,382  
May 4, 2025   26.73     3,730  
May 10, 2025   26.73     1,865  
May 17, 2025   26.73     3,730  
May 31, 2025   26.73     1,865  
June 8, 2025   9.65     1,500,000  
August 6, 2025 (i)   5.40     1,381,215  
October 20, 2025 (ii)   3.30     3,454,543  
January 16, 2026   26.73     1,722  
January 20, 2026   26.73     373  
    5.50     6,956,795  
Warrants Outstanding  
    Exercise price     Number outstanding  
Expiry Date   C$     #  
August 1, 2021   5.43     4,476  
May 24, 2022   18.09     163,535  
September 15, 2022   4.42     199,005  
May 20, 2023   16.08     7,311  
July 24, 2023   13.07     3,357  
September 11, 2023   5.43     22,382  
May 4, 2025   26.73     3,730  
May 10, 2025   26.73     1,865  
May 17, 2025   26.73     3,730  
May 31, 2025   26.73     1,865  
June 8, 2025   9.65     1,500,000  
August 6, 2025 (i)   5.42     1,381,215  
October 20, 2025 (ii)   3.31     3,454,543  
January 16, 2026   26.73     1,722  
January 20, 2026   26.73     373  
    5.62     6,749,109  
Warrants Outstanding  
    Exercise price     Number outstanding  
Expiry Date   C$     #  
January 5, 2020   6.03     37,313  
November 30, 2020   2.61     16,787  
August 1, 2021   5.43     4,476  
May 24, 2022   18.09     163,535  
September 15, 2022   4.42     199,005  
May 20, 2023   16.08     7,311  
July 24, 2023   13.07     3,357  
September 11, 2023   5.43     22,382  
May 4, 2025   26.73     3,730  
May 10, 2025   26.73     1,865  
May 17, 2025   26.73     3,730  
May 31, 2025   26.73     1,865  
January 16, 2026   26.73     1,722  
January 20, 2026   26.73     373  
    10.20     467,451