XML 117 R99.htm IDEA: XBRL DOCUMENT
v3.8.0.1

20. STOCK OPTIONS (Details 1) | Dec. 31, 2017 CAD CAD / shares yr | Dec. 31, 2016 CAD CAD / shares
--- | --- | ---
Disclosure of range of exercise prices of outstanding share options [line items] |  |
Weighted average remaining contractual life | yr | 3.25 |
Stock options outstanding | CAD / shares | 11,799,650 | 6,938,179
Weighted average exercise price per share | CAD | CAD 0.94 | CAD 1.06
$0.50 to $0.99 |  |
Disclosure of range of exercise prices of outstanding share options [line items] |  |
Weighted average remaining contractual life | yr | 3.9 |
Stock options outstanding | CAD / shares | 8,789,650 |
Weighted average exercise price per share | CAD | CAD 0.79 |
$1.00 to $1.19 |  |
Disclosure of range of exercise prices of outstanding share options [line items] |  |
Weighted average remaining contractual life | yr | 2.19 |
Stock options outstanding | CAD / shares | 1,265,000 |
Weighted average exercise price per share | CAD | CAD 1.09 |
$1.20 to $1.39 |  |
Disclosure of range of exercise prices of outstanding share options [line items] |  |
Weighted average remaining contractual life | yr | 0.2 |
Stock options outstanding | CAD / shares | 827,000 |
Weighted average exercise price per share | CAD | CAD 1.3 |
$1.40 to $1.99 |  |
Disclosure of range of exercise prices of outstanding share options [line items] |  |
Weighted average remaining contractual life | yr | 1.18 |
Stock options outstanding | CAD / shares | 918,000 |
Weighted average exercise price per share | CAD | CAD 1.82 |

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

X
- Definition The number of share options outstanding in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2016-01-13 -Paragraph 45 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2016-03-30&anchor=para_45_d&doctype=Standard -URIDate 2016-03-31 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2016-01-13 -Paragraph 45 -Subparagraph b -Clause i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2016-03-30&anchor=para_45_b_i&doctype=Standard -URIDate 2016-03-31 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2016-01-13 -Paragraph 45 -Subparagraph b -Clause vi -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2016-03-30&anchor=para_45_b_vi&doctype=Standard -URIDate 2016-03-31 + Details
Name: | ifrs-full_NumberOfOutstandingShareOptions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition The weighted average exercise price of share options outstanding in a share-based payment arrangement. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2016-01-13 -Paragraph 45 -Subparagraph b -Clause i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2016-03-30&anchor=para_45_b_i&doctype=Standard -URIDate 2016-03-31 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2016-01-13 -Paragraph 45 -Subparagraph b -Clause vi -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2016-03-30&anchor=para_45_b_vi&doctype=Standard -URIDate 2016-03-31 + Details
Name: | ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition The weighted average remaining contractual life of outstanding share options. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2016-01-13 -Paragraph 45 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2016-03-30&anchor=para_45_d&doctype=Standard -URIDate 2016-03-31 + Details
Name: | ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsAxis=DNN_Range1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsAxis=DNN_Range2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsAxis=DNN_Range3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsAxis=DNN_Range4Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |