XML 137 R112.htm IDEA: XBRL DOCUMENT
v3.24.0.1

SEGMENTED INFORMATION - Results (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 CAD ($) segment | Nov. 30, 2023 CAD ($) | Dec. 31, 2022 CAD ($) | Nov. 30, 2022 CAD ($) | Dec. 31, 2021 CAD ($)
SEGMENTED INFORMATION |  |  |  |  |
Number of primary operating segments | segment | 2 |  |  |  |
Revenue | $ 1,855,000 | $ 0 | $ 8,973,000 | $ 0 |
Expenses: |  |  |  |  |
Operating expenses | (3,898,000) |  | (5,352,000) |  |
Exploration | (9,564,000) |  | (8,097,000) |  |
Evaluation | (18,622,000) |  | (22,181,000) |  |
General and administrative | (13,760,000) |  | (12,538,000) |  |
Revenues - supplemental: |  |  |  |  |
Toll milling services-deferred revenue | 1,855,000 |  | 5,987,000 |  |
Long-lived assets: |  |  |  |  |
Property, plant and equipment, Cost | 254,946,000 |  | 253,505,000 |  |
Accumulated depreciation and amortisation [member] |  |  |  |  |
Long-lived assets: |  |  |  |  |
Property, plant and equipment, Cost | (39,341,000) |  | (35,545,000) |  | $ (31,962,000)
Mineral properties | Accumulated depreciation and amortisation [member] |  |  |  |  |
Long-lived assets: |  |  |  |  |
Property, plant and equipment, Cost | 0 |  | 0 |  | $ 0
Segments Operating |  |  |  |  |
SEGMENTED INFORMATION |  |  |  |  |
Revenue | 1,855,000 |  | 8,973,000 |  |
Expenses: |  |  |  |  |
Operating expenses | (3,898,000) |  | (5,352,000) |  |
Exploration | (9,564,000) |  | (8,097,000) |  |
Evaluation | (18,622,000) |  | (22,181,000) |  |
General and administrative | (13,760,000) |  | (12,538,000) |  |
Total expenses | (45,844,000) |  | (48,168,000) |  |
Segment income (loss) | (43,989,000) |  | (39,195,000) |  |
Revenues - supplemental: |  |  |  |  |
Toll milling services-deferred revenue | 1,855,000 |  | 5,987,000 |  |
Uranium concentrate sales |  |  | 2,986,000 |  |
Capital additions: |  |  |  |  |
Property, plant and equipment | 3,268,000 |  | 7,265,000 |  |
Long-lived assets: |  |  |  |  |
Property, plant and equipment, Cost | 254,946,000 |  | 253,505,000 |  |
Property, plant and equipment, Accumulated depreciation | 39,340,000 |  | 35,545,000 |  |
Segments Operating | Plant and Equipment, Cost |  |  |  |  |
Long-lived assets: |  |  |  |  |
Property, plant and equipment, Cost | 113,473,000 |  | 108,831,000 |  |
Segments Operating | Mineral properties |  |  |  |  |
Long-lived assets: |  |  |  |  |
Property, plant and equipment, Cost | 180,813,000 |  | 180,219,000 |  |
Mining | Segments Operating |  |  |  |  |
SEGMENTED INFORMATION |  |  |  |  |
Revenue | 1,855,000 |  | 8,973,000 |  |
Expenses: |  |  |  |  |
Operating expenses | (3,898,000) |  | (5,352,000) |  |
Exploration | (9,564,000) |  | (8,097,000) |  |
Evaluation | (18,622,000) |  | (22,181,000) |  |
General and administrative | (19,000) |  | (22,000) |  |
Total expenses | (32,103,000) |  | (35,652,000) |  |
Segment income (loss) | (30,248,000) |  | (26,679,000) |  |
Revenues - supplemental: |  |  |  |  |
Toll milling services-deferred revenue | 1,855,000 |  | 5,987,000 |  |
Uranium concentrate sales |  |  | 2,986,000 |  |
Capital additions: |  |  |  |  |
Property, plant and equipment | 2,165,000 |  | 2,634,000 |  |
Long-lived assets: |  |  |  |  |
Property, plant and equipment, Cost | 249,549,000 |  | 248,754,000 |  |
Property, plant and equipment, Accumulated depreciation | 38,178,000 |  | 34,803,000 |  |
Mining | Segments Operating | Plant and Equipment, Cost |  |  |  |  |
Long-lived assets: |  |  |  |  |
Property, plant and equipment, Cost | 106,914,000 |  | 103,338,000 |  |
Mining | Segments Operating | Mineral properties |  |  |  |  |
Long-lived assets: |  |  |  |  |
Property, plant and equipment, Cost | 180,813,000 |  | 180,219,000 |  |
Corporate and Other | Segments Operating |  |  |  |  |
SEGMENTED INFORMATION |  |  |  |  |
Revenue | 0 |  | 0 |  |
Expenses: |  |  |  |  |
Operating expenses | 0 |  | 0 |  |
Exploration | 0 |  | 0 |  |
Evaluation | 0 |  | 0 |  |
General and administrative | (13,741,000) |  | (12,516,000) |  |
Total expenses | (13,741,000) |  | (12,516,000) |  |
Segment income (loss) | (13,741,000) |  | (12,516,000) |  |
Revenues - supplemental: |  |  |  |  |
Toll milling services-deferred revenue | 0 |  | 0 |  |
Uranium concentrate sales |  |  | 0 |  |
Capital additions: |  |  |  |  |
Property, plant and equipment | 1,103,000 |  | 4,631,000 |  |
Long-lived assets: |  |  |  |  |
Property, plant and equipment, Cost | 5,397,000 |  | 4,751,000 |  |
Property, plant and equipment, Accumulated depreciation | 1,162,000 |  | 742,000 |  |
Corporate and Other | Segments Operating | Plant and Equipment, Cost |  |  |  |  |
Long-lived assets: |  |  |  |  |
Property, plant and equipment, Cost | 6,559,000 |  | 5,493,000 |  |
Corporate and Other | Segments Operating | Mineral properties |  |  |  |  |
Long-lived assets: |  |  |  |  |
Property, plant and equipment, Cost | $ 0 |  | $ 0 |  |

X
- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. + References No definition available. + Details
Name: | dnn_AdditionsOfPropertyPlantAndEquipment
Namespace Prefix: | dnn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition The amount of expense arising from the search for mineral resources, including minerals, oil, natural gas and similar non-regenerative resources after the entity has obtained legal rights to explore in a specific area, as well as the determination of the technical feasibility and commercial viability of extracting the mineral resource, specifically related to Evaluation. + References No definition available. + Details
Name: | dnn_ExpenseArisingFromEvaluationOfMineralResources
Namespace Prefix: | dnn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of expense arising from the search for mineral resources, including minerals, oil, natural gas and similar non-regenerative resources after the entity has obtained legal rights to explore in a specific area, as well as the determination of the technical feasibility and commercial viability of extracting the mineral resource, specifically related to Exploration. + References No definition available. + Details
Name: | dnn_ExpenseArisingFromExplorationOfMineralResources
Namespace Prefix: | dnn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
Name: | dnn_NumberOfPrimaryOperatingSegments
Namespace Prefix: | dnn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | dnn_RevenueArisingFromUraniumConcentrateSales
Namespace Prefix: | dnn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | dnn_SegmentProfitLoss
Namespace Prefix: | dnn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition Represents the amount of toll milling revenue recognized from the drawdown of deferred revenue. + References No definition available. + Details
Name: | dnn_TollMillingRevenueRecognized
Namespace Prefix: | dnn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | dnn_TotalSegmentExpenses
Namespace Prefix: | dnn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition The amount of depreciation of property, plant and equipment. [Refer: Depreciation and amortisation expense; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -Clause vii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e_vii&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 75 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_75_a&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_DepreciationPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition The amount of all operating expenses. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 85 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_85&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_OperatingExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of property, plant and equipment including right-of-use assets whose underlying assets would be presented as property, plant and equipment if they were owned. [Refer: Property, plant and equipment; Right-of-use assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 54 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_a&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_a&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The income arising in the course of an entity's ordinary activities. Income is increases in assets, or decreases in liabilities, that result in increases in equity, other than those relating to contributions from holders of equity claims. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 28 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_28_a&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 23 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_23_a&doctype=Standard -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 32 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_32&doctype=Standard -URIDate 2023-03-23 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 5 -IssueDate 2023-01-01 -Paragraph 33 -Subparagraph b -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=5&code=ifrs-tx-2023-en-r&anchor=para_33_b_i&doctype=Standard -URIDate 2023-03-23 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 33 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_33_a&doctype=Standard -URIDate 2023-03-23 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 34 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_34&doctype=Standard -URIDate 2023-03-23 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph B12 -Subparagraph b -Clause v -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_B12_b_v&doctype=Appendix&subtype=B -URIDate 2023-03-23 Reference 8: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph B10 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_B10_b&doctype=Appendix&subtype=B -URIDate 2023-03-23 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 82 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_82_a&doctype=Standard -URIDate 2023-03-23 Reference 10: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 103 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_103&doctype=Standard -URIDate 2023-03-23 Reference 11: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 102 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_102&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_Revenue
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition The amount of expense relating to selling, general and administrative activities of the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 85 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_85&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_SellingGeneralAndAdministrativeExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dnn_MineralPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dnn_SegmentsConsolidationItemsAxis=dnn_SegmentsOperatingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | ifrs-full_SegmentsAxis=dnn_MiningMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentsAxis=dnn_CorporateAndOtherSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |