XML 92 R74.htm IDEA: XBRL DOCUMENT
v3.8.0.1

10. INVESTMENT IN ASSOCIATES (Details Narrative) - GoviEx CAD in Thousands | Dec. 31, 2017 CAD CAD / shares | Dec. 31, 2016 CAD CAD / shares
--- | --- | ---
DisclosureOfInvestmentsInAssociatesLineItems [Line Items] |  |
Trading price of GoviEx Shares | CAD / shares | 0.27 | 0.15
Quoted market value of GoviEx Shares | CAD | CAD 17,589 | CAD 9,772

X
- References No definition available. + Details
Name: | DNN_DisclosureOfInvestmentsInAssociatesLineItems
Namespace Prefix: | DNN_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | DNN_QuotedMarketValueOfAssociateSharesGoviEx
Namespace Prefix: | DNN_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | DNN_TradingPriceOfAssociateSharesGoviEx
Namespace Prefix: | DNN_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=DNN_GoviexMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |