XML 87 R61.htm IDEA: XBRL DOCUMENT
v3.20.4

Share Based Payments - Narrative (Details) - CAD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Non-cash share-based compensation | $ 2,558,974 | $ 1,470,153 | $ 1,415,833
Restricted share units |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Vesting period | 3 years |  |
Performance share units |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Vesting period | 3 years |  |
Reserve of share-based payments |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Common shares reserved for issuance (shares) | 4,616,698 |  |
Minimum |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Vesting period | 1 year |  |
Maximum |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Vesting period | 3 years |  |

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of expense from share-based payment transactions with employees. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of shares reserved for issue under options and contracts for the sale of shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 79 -Subparagraph a -Clause vii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_79_a_vii&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_SharesReservedForIssueUnderOptionsAndContractsForSaleOfShares
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period1 + References No definition available. + Details
Name: | oncyf_SharebasedCompensationArrangementbySharebasedPaymentAwardAwardVestingPeriod1
Namespace Prefix: | oncyf_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=oncyf_RestrictedShareUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=oncyf_PerformanceShareUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=ifrs-full_ReserveOfSharebasedPaymentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |