XML 117 R94.htm IDEA: XBRL DOCUMENT
v3.23.1

Property, plant and equipment - Schedule of amounts included in the consolidated statement of cash flows (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of Detailed Information About Cash Flows for Leases [Abstract] |  |  |
Within operating cash flows | $ (831,631) | $ (1,019,937) | $ (429,691)
Within financing cash flows | (2,121,981) | (1,504,946) | (660,326)
Total | $ (2,953,612) | $ (2,524,883) | $ (1,090,017)

X
- Definition The cash outflow for leases. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2022-03-24 -Paragraph 53 -Subparagraph g -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&anchor=para_53_g&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_CashOutflowForLeases
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow for payment of lease liabilities, classified as financing activities. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 17 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_17_e&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Disclosure of detailed information about cash flows for leases. + References No definition available. + Details
Name: | pre_DisclosureOfDetailedInformationAboutCashFlowsForLeasesAbstract
Namespace Prefix: | pre_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Operating lease payments. + References No definition available. + Details
Name: | pre_OperatingLeasePayments
Namespace Prefix: | pre_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration