XML 169 R111.htm IDEA: XBRL DOCUMENT
v3.22.0.1

SUPPLEMENTAL FINANCIAL INFORMATION (Details 3) $ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) | Dec. 31, 2020 CAD ($)
Statement [Line Items] |  |
Depreciation | $ (2,564) | $ (2,235)
Cost of Services |  |
Statement [Line Items] |  |
Depreciation | (179) | (192)
Mining, Other Development Expense |  |
Statement [Line Items] |  |
Depreciation | (2) | (3)
Milling, Conversion Expense |  |
Statement [Line Items] |  |
Depreciation | (2,053) | (1,730)
Evaluation |  |
Statement [Line Items] |  |
Depreciation | (36) | (36)
Exploration |  |
Statement [Line Items] |  |
Depreciation | (180) | (148)
General and Administrative |  |
Statement [Line Items] |  |
Depreciation | $ (114) | $ (126)

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

X
- Definition Adjustments for depreciation expense to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_20&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_AdjustmentsForDepreciationExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_ProductsAndServicesAxis=dnn_CostOfServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=dnn_MiningOtherDevelopmentExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=dnn_MillingConversionExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=dnn_EvaluationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=dnn_ExplorationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=dnn_GeneralAndAdministrativeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |