XML 69 R80.htm IDEA: XBRL DOCUMENT
v3.20.1

Cost of sales (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Text block [abstract] |
Summary of Cost of Sales | Cost of sales is analysed as follows:
|  | 2019 |  |  | 2018 |  |  | 2017 |
Opening inventories |  |  | 84,227 |  |  |  | 91,077 |  |  |  | 91,014 |
Purchases |  |  | 139,205 |  |  |  | 177,591 |  |  |  | 180,872 |
Labour costs |  |  | 86,209 |  |  |  | 89,827 |  |  |  | 92,330 |
Third party manufacturers costs |  |  | 3,919 |  |  |  | 6,039 |  |  |  | 8,725 |
Other manufacturing costs |  |  | 29,519 |  |  |  | 29,004 |  |  |  | 37,605 |
Government grants related to PPE |  |  | (1,463 | ) |  |  | (1,061 | ) |  |  | (1,068 | )
Closing inventories |  |  | (69,685 | ) |  |  | (84,227 | ) |  |  | (91,077 | )
Total |  |  | 271,931 |  |  |  | 308,250 |  |  |  | 318,401 |

X
- Definition The disclosure of detailed information about cost of sales. + References No definition available. + Details
Name: | ntz_DisclosureOfDetailedInformationAboutCostOfSalesExplanatory
Namespace Prefix: | ntz_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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