XML 59 R30.htm IDEA: XBRL DOCUMENT
v3.10.0.1

SHARE CAPITAL AND RESERVES (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Text block [abstract] |
Summary of Stock Option Transactions and the Number of Stock Options | Stock option transactions and the number of stock options are summarized as follows:
|  | Number of Stock Options |  |  | Weighted Average Exercise Price |
Outstanding at December 31, 2016 |  |  | 33,466,112 |  |  | $ | 1.06 |
Granted |  |  | 6,200,000 |  |  |  | 3.27 |
Exercised |  |  | (1,424,445 | ) |  |  | 0.79 |
Forfeited |  |  | (383,333 | ) |  |  | 2.53 |
Outstanding at December 31, 2017 |  |  | 37,858,334 |  |  | $ | 1.42 |
Granted |  |  | 9,045,482 |  |  |  | 2.64 |
Exercised |  |  | (10,458,334 | ) |  |  | 0.49 |
Forfeited |  |  | (208,334 | ) |  |  | 3.23 |
Outstanding at December 31, 2018 |  |  | 36,237,148 |  |  | $ | 1.98 |
Number of options exercisable |  |  | 28,373,492 |  |  | $ | 1.76 |
Summary of Company's Stock Options Outstanding and Exercisable | As at December 31, 2018, the Company has stock options outstanding and exercisable as follows:
Number of Options |  |  | Number Exercisable |  |  | Exercise Price |  |  | Remaining Contractual Life (Years) |  |  | Expiry Date
| 33,333 |  |  |  | 33,333 |  |  | $ | 2.24 |  |  |  | 0.07 |  |  | January 25, 2019
| 8,333 |  |  |  | 8,333 |  |  | $ | 3.39 |  |  |  | 0.07 |  |  | January 25, 2019
| 150,000 |  |  |  | 150,000 |  |  | $ | 0.46 |  |  |  | 0.16 |  |  | February 28, 2019
| 50,000 |  |  |  | 50,000 |  |  | $ | 0.50 |  |  |  | 0.16 |  |  | February 28, 2019
| 75,000 |  |  |  | 75,000 |  |  | $ | 0.64 |  |  |  | 0.16 |  |  | February 28, 2019
| 50,000 |  |  |  | 50,000 |  |  | $ | 2.65 |  |  |  | 0.16 |  |  | February 28, 2019
| 25,000 |  |  |  | 25,000 |  |  | $ | 2.24 |  |  |  | 0.16 |  |  | February 28, 2019
| 25,000 |  |  |  | 25,000 |  |  | $ | 3.39 |  |  |  | 0.16 |  |  | February 28, 2019
| 250,000 |  |  |  | 250,000 |  |  | $ | 0.64 |  |  |  | 0.29 |  |  | April 15, 2019
| 800,000 |  |  |  | 800,000 |  |  | $ | 2.65 |  |  |  | 0.29 |  |  | April 15, 2019
| 475,000 |  |  |  | 475,000 |  |  | $ | 2.24 |  |  |  | 0.29 |  |  | April 15, 2019
| 475,000 |  |  |  | 475,000 |  |  | $ | 3.39 |  |  |  | 0.29 |  |  | April 15, 2019
| 2,450,000 |  |  |  | 2,450,000 |  |  | $ | 0.40 |  |  |  | 0.39 |  |  | May 23, 2019
| 3,300,000 |  |  |  | 3,300,000 |  |  | $ | 0.46 |  |  |  | 0.98 |  |  | December 24, 2019
| 2,850,000 |  |  |  | 2,850,000 |  |  | $ | 0.50 |  |  |  | 1.41 |  |  | May 27, 2020
| 3,250,000 |  |  |  | 3,250,000 |  |  | $ | 0.64 |  |  |  | 1.96 |  |  | December 16, 2020
| 250,000 |  |  |  | 250,000 |  |  | $ | 2.69 |  |  |  | 2.44 |  |  | June 8, 2021
| 4,425,000 |  |  |  | 4,425,000 |  |  | $ | 2.65 |  |  |  | 2.48 |  |  | June 23, 2021
| 2,750,000 |  |  |  | 2,750,000 |  |  | $ | 2.24 |  |  |  | 2.96 |  |  | December 15, 2021
| 250,000 |  |  |  | 166,667 |  |  | $ | 3.11 |  |  |  | 3.31 |  |  | April 22, 2022
| 1,475,000 |  |  |  | 983,333 |  |  | $ | 2.93 |  |  |  | 3.87 |  |  | November 13, 2022
| 3,775,000 |  |  |  | 2,516,667 |  |  | $ | 3.39 |  |  |  | 3.96 |  |  | December 14, 2022
| 475,000 |  |  |  | 158,333 |  |  | $ | 2.39 |  |  |  | 4.28 |  |  | April 13, 2023
| 4,525,000 |  |  |  | 1,508,333 |  |  | $ | 2.85 |  |  |  | 4.44 |  |  | June 8, 2023
| 100,000 |  |  |  | 33,333 |  |  | $ | 2.66 |  |  |  | 4.47 |  |  | June 20, 2023
| 720,482 |  |  |  | 240,160 |  |  | $ | 2.49 |  |  |  | 4.64 |  |  | August 21, 2023
| 3,225,000 |  |  |  | 1,075,000 |  |  | $ | 2.41 |  |  |  | 5.00 |  |  | December 31, 2023
36,237,148 |  |  | 28,373,492 |  |  |  |  |  |  |  |  |
Summary of Weighted Average Grant Date Fair Values | The following weighted average assumptions were used to estimate the weighted average grant date fair values for the years ended December 31, 2018 and December 31, 2017:
|  | December 31, 2018 |  |  | December 31, 2017 |
Expected stock price volatility |  |  | 83.41 | % |  |  | 81.72 | %
Expected life of options |  |  | 5.00 years |  |  |  | 5.00 years |
Risk free interest rate |  |  | 2.08 | % |  |  | 1.53 | %
Expected forfeitures |  |  | 0 | % |  |  | 0 | %
Expected dividend yield |  |  | 0 | % |  |  | 0 | %
Weighted average fair value per option granted |  | $ | 1.76 |  |  | $ | 2.13 |

X
- Definition The disclosure of the number and weighted average exercise prices of share options. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2018-01-01 -Paragraph 45 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2018-03-01&anchor=para_45_b&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of the number and 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 2018-01-01 -Paragraph 45 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2018-03-01&anchor=para_45_d&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure Of Detailed Information About Options Valuation Assumptions [text block] + References No definition available. + Details
Name: | nxe_DisclosureOfDetailedInformationAboutOptionsValuationAssumptionsExplanatory
Namespace Prefix: | nxe_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Text block [abstract] + References No definition available. + Details
Name: | nxe_TextBlockAbstract
Namespace Prefix: | nxe_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration