Convertible Preferred Shares	12 Months Ended
Dec. 31, 2021
Equity [Abstract]
Convertible Preferred Shares	9. Convertible Preferred Shares In June 2017, the Company authorized the issuance of an unlimited number of Series A Preferred Shares with no par value in connection with the sale and issuance of up to 13,237,696 Series A Preferred Shares. The Series A Preferred Share financing was structured to close in three tranches, each contingent upon the achievement of certain specified milestones. In June 2017, in connection with the closing of the first tranche of Series A Preferred Shares, the Company issued 5,906,049 Series A Preferred Shares at $4.91 per share for total proceeds of $29.0 million, net of issuance costs of $0.04 million and converted previously issued and outstanding Convertible Notes amounting to $4.5 million issued in October 2016 and April 2017 into 907,291 Series A Preferred Shares. The terms included the obligation of the investors to purchase, and the Company to sell, up to 7,331,647 additional Series A Preferred Shares contingent upon the achievement of certain specified milestones. The Company concluded that the obligation and right to make future issuances of Series A Preferred Shares met the definition of a freestanding financial instrument, as the rights were legally detachable from the Series A Preferred Shares (Note 3). In January 2019, in connection with the closing of the second tranche of Series A Preferred Shares, the Company issued 4,276,795 Series A Preferred Shares at $4.91 per share for total gross proceeds of $21.0 million, and the liability related to the Series A second tranche obligation was settled and recognized at fair value as Series A Preferred Shares. In August 2019, the Company authorized the issuance of an unlimited number of Series B Preferred Shares with no par value. In September 2019, the Company issued 10,468,258 Series B Preferred Shares to existing and new investors at $7.88 per share for total proceeds of $82.5 million. In connection with the issuance and sale of Series B Preferred Shares, the Series A third tranche obligation liability was terminated and recognized as additional paid-in-capital. The carrying value of the Series A Preferred Shares was based on the net proceeds received at initial issuance net of the fair value of the Series A Preferred Share Tranche Obligation. At issuance of the first and second tranches, no beneficial conversion features were present. The carrying value of the Series B Preferred Shares was based on the net proceeds received. At initial issuance, no beneficial conversion features were present. Upon completion of the IPO in June 2020, all issued and outstanding Series A and Series B convertible preferred shares were converted into 21,558,393 common shares and the existing classes of Series A and Series B convertible preferred shares were removed.

Convertible Preferred Shares

12 Months Ended

Dec. 31, 2021

9. Convertible Preferred Shares

In June 2017, the Company authorized the issuance of an unlimited number of Series A Preferred Shares with no par value in connection with the sale and issuance of up to 13,237,696 Series A Preferred Shares. The Series A Preferred Share financing was structured to close in three tranches, each contingent upon the achievement of certain specified milestones.

In June 2017, in connection with the closing of the first tranche of Series A Preferred Shares, the Company issued 5,906,049 Series A Preferred Shares at $4.91 per share for total proceeds of $29.0 million, net of issuance costs of $0.04 million and converted previously issued and outstanding Convertible Notes amounting to $4.5 million issued in October 2016 and April 2017 into 907,291 Series A Preferred Shares. The terms included the obligation of the investors to purchase, and the Company to sell, up to 7,331,647 additional Series A Preferred Shares contingent upon the achievement of certain specified milestones. The Company concluded that the obligation and right to make future issuances of Series A Preferred Shares met the definition of a freestanding financial instrument, as the rights were

legally detachable from the Series A Preferred Shares (Note 3). In January 2019, in connection with the closing of the second tranche of Series A Preferred Shares, the Company issued 4,276,795 Series A Preferred Shares at $4.91 per share for total gross proceeds of $21.0 million, and the liability related to the Series A second tranche obligation was settled and recognized at fair value as Series A Preferred Shares.

In August 2019, the Company authorized the issuance of an unlimited number of Series B Preferred Shares with no par value. In September 2019, the Company issued 10,468,258 Series B Preferred Shares to existing and new investors at $7.88 per share for total proceeds of $82.5 million. In connection with the issuance and sale of Series B Preferred Shares, the Series A third tranche obligation liability was terminated and recognized as additional paid-in-capital.

The carrying value of the Series A Preferred Shares was based on the net proceeds received at initial issuance net of the fair value of the Series A Preferred Share Tranche Obligation. At issuance of the first and second tranches, no beneficial conversion features were present. The carrying value of the Series B Preferred Shares was based on the net proceeds received. At initial issuance, no beneficial conversion features were present.

Upon completion of the IPO in June 2020, all issued and outstanding Series A and Series B convertible preferred shares were converted into 21,558,393 common shares and the existing classes of Series A and Series B convertible preferred shares were removed.