2104100 - Disclosure - Collaborations, Contracts and Licensing Agreements link:presentationLink link:calculationLink link:definitionLink 2404404 - Disclosure - Collaborations, Contracts and Licensing Agreements - Deferred Collaborations and Contracts Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 2404402 - Disclosure - Collaborations, Contracts and Licensing Agreements (Details) link:presentationLink link:calculationLink link:definitionLink 2404403 - Disclosure - Collaborations, Contracts and Licensing Agreements - Revenue Recognized Under Collaborations, Contracts and Licensing Agreements (Details) link:presentationLink link:calculationLink link:definitionLink 2304301 - Disclosure - Collaborations, Contracts and Licensing Agreements (Tables) link:presentationLink link:calculationLink link:definitionLink 2110100 - Disclosure - Concentrations of Business Risk link:presentationLink link:calculationLink link:definitionLink 2410402 - Disclosure - Concentrations of Business Risk (Details) link:presentationLink link:calculationLink link:definitionLink 2410404 - Disclosure - Concentrations of Business Risk - Foreign Currency Exposure (Details) link:presentationLink link:calculationLink link:definitionLink 2410403 - Disclosure - Concentrations of Business Risk - Net Liquidity of the Company (Details) link:presentationLink link:calculationLink link:definitionLink 2310301 - Disclosure - Concentrations of Business Risk (Tables) link:presentationLink link:calculationLink link:definitionLink 1001000 - Statement - Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 1001501 - Statement - Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1003000 - Statement - Consolidated Statement of Stockholders’ Equity link:presentationLink link:calculationLink link:definitionLink 1003501 - Statement - Consolidated Statement of Stockholders Equity (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1004000 - Statement - Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 1002000 - Statement - Consolidated Statements of Operations and Comprehensive Loss link:presentationLink link:calculationLink link:definitionLink 2109100 - Disclosure - Contingencies and Commitments link:presentationLink link:calculationLink link:definitionLink 2409403 - Disclosure - Contingencies and Commitments (Details) link:presentationLink link:calculationLink link:definitionLink 2409402 - Disclosure - Contingencies and Commitments - Minimum Rent and Estimated Operating Cost Commitment, Net Lease Inducements (Details) link:presentationLink link:calculationLink link:definitionLink 2309301 - Disclosure - Contingencies and Commitments (Tables) link:presentationLink link:calculationLink link:definitionLink 0001000 - Document - Document And Entity Information link:presentationLink link:calculationLink link:definitionLink 2107100 - Disclosure - Government Grants and Refundable Investment Tax Credits link:presentationLink link:calculationLink link:definitionLink 2407401 - Disclosure - Government Grants and Refundable Investment Tax Credits (Details) link:presentationLink link:calculationLink link:definitionLink 2108100 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 2408404 - Disclosure - Income Taxes - Deferred Tax Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2408402 - Disclosure - Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 2408403 - Disclosure - Income Taxes - Income Tax Reconciliation (Details) link:presentationLink link:calculationLink link:definitionLink 2308301 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 2112100 - Disclosure - Interim Financial Data (Unaudited) link:presentationLink link:calculationLink link:definitionLink 2412402 - Disclosure - Interim Financial Data (Unaudited) (Details) link:presentationLink link:calculationLink link:definitionLink 2312301 - Disclosure - Interim Financial Data (Unaudited) (Tables) link:presentationLink link:calculationLink link:definitionLink 2103100 - Disclosure - Merger with Arbutus Biopharma Inc. (formerly OnCore BioPharma, Inc.) link:presentationLink link:calculationLink link:definitionLink 2403407 - Disclosure - Merger with Arbutus Biopharma Inc. (formerly OnCore BioPharma, Inc.) - Carrying Value of Intangible Assets After Impairment (Details) link:presentationLink link:calculationLink link:definitionLink 2403402 - Disclosure - Merger with Arbutus Biopharma Inc. (formerly OnCore BioPharma, Inc.) - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2403406 - Disclosure - Merger with Arbutus Biopharma Inc. (formerly OnCore BioPharma, Inc.) - Pro Forma Information (Details) link:presentationLink link:calculationLink link:definitionLink 2403403 - Disclosure - Merger with Arbutus Biopharma Inc. (formerly OnCore BioPharma, Inc.) - Purchase Price Allocation (Details) link:presentationLink link:calculationLink link:definitionLink 2403405 - Disclosure - Merger with Arbutus Biopharma Inc. (formerly OnCore BioPharma, Inc.) - Reconciliation of Preliminary to Final Purchase Price Allocation (Details) link:presentationLink link:calculationLink link:definitionLink 2403404 - Disclosure - Merger with Arbutus Biopharma Inc. (formerly OnCore BioPharma, Inc.) - Summary of Acquired Identifiable Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2303301 - Disclosure - Merger with Arbutus Biopharma Inc. (formerly OnCore BioPharma, Inc.) (Tables) link:presentationLink link:calculationLink link:definitionLink 2101100 - Disclosure - Nature of Business and Future Operations link:presentationLink link:calculationLink link:definitionLink 2401401 - Disclosure - Nature of Business and Future Operations Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2105100 - Disclosure - Property and Equipment link:presentationLink link:calculationLink link:definitionLink 2405402 - Disclosure - Property and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 2405403 - Disclosure - Property and Equipment - Property and Equipment Summary (Details) link:presentationLink link:calculationLink link:definitionLink 2305301 - Disclosure - Property and Equipment (Tables) link:presentationLink link:calculationLink link:definitionLink 2106100 - Disclosure - Share Capital link:presentationLink link:calculationLink link:definitionLink 2406404 - Disclosure - Share Capital - Black-Scholes Option-pricing Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 2406402 - Disclosure - Share Capital (Details) link:presentationLink link:calculationLink link:definitionLink 2406412 - Disclosure - Share Capital - Location Of Expenses for Stock-based Compensation (Details) link:presentationLink link:calculationLink link:definitionLink 2406407 - Disclosure - Share Capital - Non-vested Stock Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 2406411 - Disclosure - Share Capital - Non-vested Stock Option Activity OnCore Option Plan (Details) link:presentationLink link:calculationLink link:definitionLink 2406410 - Disclosure - Share Capital - Outstanding Options Under the OnCore Option Plan (Details) link:presentationLink link:calculationLink link:definitionLink 2406409 - Disclosure - Share Capital - Outstanding Options Under the Protiva Option Plan (Details) link:presentationLink link:calculationLink link:definitionLink 2406405 - Disclosure - Share Capital - Stock Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 2406406 - Disclosure - Share Capital - Stock Options Outstanding (Details) link:presentationLink link:calculationLink link:definitionLink 2406403 - Disclosure - Share Capital - Summary of Warrant Activity (Details) link:presentationLink link:calculationLink link:definitionLink 2306301 - Disclosure - Share Capital (Tables) link:presentationLink link:calculationLink link:definitionLink 2406408 - Disclosure - Share Capital - Weighted Average Option Pricing Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 2102100 - Disclosure - Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 2402404 - Disclosure - Significant Accounting Policies - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 2402405 - Disclosure - Significant Accounting Policies - Changes in Fair Value of the Company's Warrants (Details) link:presentationLink link:calculationLink link:definitionLink 2402406 - Disclosure - Significant Accounting Policies - Changes in Fair Value of Contingent Consideration (Details) link:presentationLink link:calculationLink link:definitionLink 2402408 - Disclosure - Significant Accounting Policies - Computation of Basic and Diluted Net Income (Loss) Per Common Share (Details) link:presentationLink link:calculationLink link:definitionLink 2402407 - Disclosure - Significant Accounting Policies - Estimated Useful Lives (Details) link:presentationLink link:calculationLink link:definitionLink 2402403 - Disclosure - Significant Accounting Policies - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2202201 - Disclosure - Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 2302302 - Disclosure - Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 2113100 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 2413401 - Disclosure - Subsequent Events (Details) link:presentationLink link:calculationLink link:definitionLink 2111100 - Disclosure - Supplementary Information link:presentationLink link:calculationLink link:definitionLink 2411402 - Disclosure - Supplementary Information (Details) link:presentationLink link:calculationLink link:definitionLink 2311301 - Disclosure - Supplementary Information (Tables) link:presentationLink link:calculationLink link:definitionLink