XML 94 R69.htm IDEA: XBRL DOCUMENT v3.8.0.1

Economic Dependence (Details)	12 Months Ended
	Dec. 31, 2017 manufacturer
Toll manufacturer
Concentration Risk Type1 [Line Items]
Concentration, number	1

X

- Definition

Concentration Risk, Number

+ References

No definition available.

+ Details

Name:	oncyf_ConcentrationRiskNumber
Namespace Prefix:	oncyf_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

[Line Items] for Concentration Risk Type1 [Table]

+ References

No definition available.

+ Details

Name:	oncyf_ConcentrationRiskType1LineItems
Namespace Prefix:	oncyf_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	oncyf_ConcentrationRiskType1Axis=oncyf_SupplierConcentrationRisk1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: