XML 136 R110.htm IDEA: XBRL DOCUMENT
v3.20.4

COMMITMENTS AND CONTINGENCIES (Details Narrative) $ in Thousands | Dec. 31, 2020 CAD ($)
--- | ---
Commitments And Contingencies |
Outstanding letters of credit | $ 24,135

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

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