XML 160 R147.htm IDEA: XBRL DOCUMENT
v3.23.1

Employees' Leaving Entitlement - Summary of Inputs Used in Measurement of Fair Values at Grant Date of Equity Settled Share-based Payment Plans (Details) - Jul. 15, 2022 $ in Thousands | EUR (€) € / shares | USD ($)
--- | --- | ---
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Fair value of option at grant date | $ |  | $ 2,458,542
American Depository Shares [member] | Beneficiary 1 [member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Fair value of option at grant date | € | € 4,390 |
Closing price at grant date | € 8.8700 |
Currency of Exercise Price | U.S. dollar |
Exercise price | € 14.5950 |
Expected volatility of the stock price (weighted-average) | 67.73% |
Expected life (weighted-average) | 2 years 8 months 19 days |
Risk-free interests rate (based on government bonds) | 2.80% |
American Depository Shares [member] | Beneficiary 2 [member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Fair value of option at grant date | € | € 4,300 |
Closing price at grant date | € 8.8700 |
Currency of Exercise Price | U.S. dollar |
Exercise price | € 15.3450 |
Expected volatility of the stock price (weighted-average) | 67.73% |
Expected life (weighted-average) | 2 years 8 months 19 days |
Risk-free interests rate (based on government bonds) | 2.80% |
American Depository Shares [member] | Beneficiary 3 with First Option [member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Fair value of option at grant date | € | € 4,530 |
EURUSD exchange rate at grant date | € | 1,005.9000 |
Closing price at grant date | € 8.8700 |
Currency of Exercise Price | Euro |
Exercise price | € 5.0295 |
Expected volatility of the stock price (weighted-average) | 67.73% |
Expected volatility of EURUSD exchange rate | 7.27% |
Expected life (weighted-average) | 6 months 3 days |
Risk-free interests rate (based on government bonds) | 2.80% |
American Depository Shares [member] | Beneficiary 3 with Second Option [member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Fair value of option at grant date | € | € 3,370 |
Closing price at grant date | € 8.8700 |
Currency of Exercise Price | U.S. dollar |
Exercise price | € 15.6000 |
Expected volatility of the stock price (weighted-average) | 67.73% |
Expected life (weighted-average) | 7 months 2 days |
Risk-free interests rate (based on government bonds) | 2.80% |

X
- Definition The spot exchange rate at the end of the reporting period. Exchange rate is the ratio of exchange for two currencies. Spot exchange rate is the exchange rate for immediate delivery. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_ClosingForeignExchangeRate
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:percentItemType
Balance Type: | na
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: | ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The exercise price of share options granted. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_ExercisePriceShareOptionsGranted2019
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The weighted average fair value of share options granted during the period at the measurement date. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 47 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_47_a&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The weighted average share price used as input to the option pricing model to calculate the fair value of share options granted. [Refer: Option pricing model [member]; Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Currency of exercise price. + References No definition available. + Details
Name: | ntz_CurrencyOfExercisePrice
Namespace Prefix: | ntz_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Description of option weighted-average expected life of share options granted. + References No definition available. + Details
Name: | ntz_DescriptionOfOptionWeightedAverageExpectedLifeOfShareOptionsGranted
Namespace Prefix: | ntz_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Expected volatility of EURUSD exchange rate. + References No definition available. + Details
Name: | ntz_ExpectedVolatilityOfEurusdExchangeRate
Namespace Prefix: | ntz_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=ntz_AmericanDepositorySharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=ntz_KeyOfficerBeneficiaryOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=ntz_KeyOfficerBeneficiaryTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=ntz_KeyOfficerBeneficiaryThreeWithFirstOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=ntz_KeyOfficerBeneficiaryThreeWithSecondOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |