Shareholders’ Equity (Deficit)	12 Months Ended
Dec. 31, 2020
Equity [Abstract]
Shareholders’ Equity (Deficit)	10. Shareholders’ Equity (Deficit) Convertible Preferred Shares The Company’s Series A and Series B convertible preferred shares were convertible on a one-to-one basis into common shares. Upon completion of the IPO, all issued and outstanding Series A and Series B convertible preferred shares were converted into 21,558,393 common shares and the existing class of Series A and Series B convertible preferred shares were removed. Preferred Shares Effective upon the closing of the IPO, the Company authorized for issue an unlimited number of preferred shares, issuable in series, having such designations, rights, privileges, restrictions and conditions, including dividend and voting rights as the board of directors of the Company may determine, and such rights and privileges, including dividend and voting rights, may be superior to those of the common shares. No preferred shares were issued and outstanding as of December 31, 2020. Warrant In conjunction with the collaboration and license agreement with Bristol Myers Squibb, the Company entered into a warrant agreement with an affiliate of Bristol Myers Squibb pursuant to which the Company issued a warrant for total proceeds of $15,000 on May 26, 2020. Upon closing of the IPO, the warrant was automatically exercised at the public offering price of $20.00 per share into 750,000 common shares of the Company. Common Shares The articles of continuance of the Company authorize an unlimited number of common shares, voting and participating, without par value. Each common share entitles the holder to one vote on all matters submitted to the shareholders for a vote. The holders of common shares are entitled to receive dividends, as may be declared by the board of directors, if any. Through December 31, 2020, no cash dividends have been declared or paid. On June 23, 2020, the Company completed its IPO of 12,650,000 of its common shares, including the exercise in full by the underwriters of their option to purchase up to 1,650,000 additional common shares, at the public offering price of $20.00 per share, for aggregate gross proceeds of $253,000. The Company received $232,043 in net proceeds after deducting underwriting discounts and commissions and other offering expenses payable by the Company. Upon closing of the IPO, all outstanding convertible preferred shares converted into 21,558,393 common shares and the outstanding warrant automatically converted into 750,000 common shares. 2020 Employee Share Purchase Plan In June 2020, the Company’s board of directors adopted, and the Company’s shareholders approved the 2020 Employee Share Purchase Plan (“ESPP”). The maximum number of common shares that may be issued under the ESPP was initially 327,000. Additionally, the number of shares reserved and available for issuance under the ESPP will automatically increase each January 1, beginning on January 1, 2021 and each January 1 thereafter through January 31, 2030, by the lesser of (1) 1.0% of the total number of common shares outstanding on December 31 of the preceding calendar year, (2) 3,300,000 common shares, or (3) such smaller number of common shares as the Company’s board of directors may designate. As of January 1, 2021, the number of common shares that may be issued under the ESPP is 696,029. The ESPP enables eligible employees to purchase common shares of the Company at the end of each offering period at a price equal to 85% of the fair market value of the shares on the first business day or the last business day of the offering period, whichever is lower. Participation in the ESPP is voluntary. Eligible employees become participants in the ESPP by enrolling in the plan and authorizing payroll deductions. Payroll deductions that have accumulated during a particular offering are used to purchase shares of the Company’s shares at the discounted price. The Company makes no contributions to the ESPP. A participant may withdraw from the ESPP or suspend contributions to the ESPP. If the participant elects to withdraw during an offering, all contributions are refunded as soon as administratively practicable. If a participant elects to withdraw or suspend contributions, they will not be able to re-enroll in the current offering but may elect to participate in future offerings. The ESPP purchases only whole shares of the Company’s shares. The Company’s first ESPP offering period began February 16, 2021 and will end on August 13, 2021. Subsequent offering periods will be on a rolling six-month basis. As of December 31, 2020, no common shares have been issued under the ESPP.

Shareholders’ Equity (Deficit)

12 Months Ended

Dec. 31, 2020

10. Shareholders’ Equity (Deficit)

Convertible Preferred Shares

The Company’s Series A and Series B convertible preferred shares were convertible on a one-to-one basis into common shares. Upon completion of the IPO, all issued and outstanding Series A and Series B convertible preferred shares were converted into 21,558,393 common shares and the existing class of Series A and Series B convertible preferred shares were removed.

Preferred Shares

Effective upon the closing of the IPO, the Company authorized for issue an unlimited number of preferred shares, issuable in series, having such designations, rights, privileges, restrictions and conditions, including dividend and voting rights as the board of directors of the Company may determine, and such rights and privileges, including dividend and voting rights, may be superior to those of the common shares. No preferred shares were issued and outstanding as of December 31, 2020.

Warrant

In conjunction with the collaboration and license agreement with Bristol Myers Squibb, the Company entered into a warrant agreement with an affiliate of Bristol Myers Squibb pursuant to which the Company issued a warrant for total proceeds of $15,000 on May 26, 2020. Upon closing of the IPO, the warrant was automatically exercised at the public offering price of $20.00 per share into 750,000 common shares of the Company.

Common Shares

The articles of continuance of the Company authorize an unlimited number of common shares, voting and participating, without par value.

Each common share entitles the holder to one vote on all matters submitted to the shareholders for a vote. The holders of common shares are entitled to receive dividends, as may be declared by the board of directors, if any. Through December 31, 2020, no cash dividends have been declared or paid.

On June 23, 2020, the Company completed its IPO of 12,650,000 of its common shares, including the exercise in full by the underwriters of their option to purchase up to 1,650,000 additional common shares, at the public offering price of $20.00 per share, for aggregate gross proceeds of $253,000. The Company received $232,043 in net proceeds after deducting underwriting discounts and commissions and other offering expenses payable by the Company. Upon closing of the IPO, all outstanding convertible preferred shares converted into 21,558,393 common shares and the outstanding warrant automatically converted into 750,000 common shares.

2020 Employee Share Purchase Plan

In June 2020, the Company’s board of directors adopted, and the Company’s shareholders approved the 2020 Employee Share Purchase Plan (“ESPP”). The maximum number of common shares that may be issued under the ESPP was initially 327,000. Additionally, the number of shares reserved and available for issuance under the ESPP will automatically increase each January 1, beginning on January 1, 2021 and each January 1 thereafter through January 31, 2030, by the lesser of (1) 1.0% of the total number of common shares outstanding on December 31 of the preceding calendar year, (2) 3,300,000 common shares, or (3) such smaller number of common shares as the Company’s board of directors may designate. As of January 1, 2021, the number of common shares that may be issued under the ESPP is 696,029.

The ESPP enables eligible employees to purchase common shares of the Company at the end of each offering period at a price equal to 85% of the fair market value of the shares on the first business day or the last business day of the offering period, whichever is lower. Participation in the ESPP is voluntary. Eligible employees become participants in the ESPP by enrolling in the plan and authorizing payroll deductions. Payroll deductions that have accumulated during a particular offering are used to purchase shares of the Company’s shares at the discounted price. The Company makes no contributions to the ESPP. A participant may withdraw from the ESPP or suspend contributions to the ESPP. If the participant elects to withdraw during an offering, all contributions are refunded as soon as administratively practicable. If a participant elects to withdraw or suspend contributions, they will not be able to re-enroll in the current offering but may elect to participate in future offerings. The ESPP purchases only whole shares of the Company’s shares. The Company’s first ESPP offering period began February 16, 2021 and will end on August 13, 2021. Subsequent offering periods will be on a rolling six-month basis.

As of December 31, 2020, no common shares have been issued under the ESPP.