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Income Tax Expense - Summary of Deferred Tax Assets and Liabilities (Detail) - EUR (€) € in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Deferred Tax Assets And Liabilities [line items] |  |
Total deferred tax assets | € 1,295 | € 2,023
Deferred tax liabilities | (996) | (1,024)
Total deferred tax liabilities | (1,405) | (2,515)
Inventories obsolescence [member] |  |
Deferred Tax Assets And Liabilities [line items] |  |
Deferred tax assets | 633 | 354
Provision for contingent liabilities [member] |  |
Deferred Tax Assets And Liabilities [line items] |  |
Deferred tax assets | 466 | 379
Other temporary differences [member] |  |
Deferred Tax Assets And Liabilities [line items] |  |
Deferred tax assets | 174 | 12
Deferred tax liabilities | (149) | (131)
Intercompany profit on inventory [member] |  |
Deferred Tax Assets And Liabilities [line items] |  |
Deferred tax assets | 22 | 1,278
Withholding tax on unremitted earnings of subsidiaries [member] |  |
Deferred Tax Assets And Liabilities [line items] |  |
Deferred tax liabilities | (516) | (1,024)
Withholding tax on liquidation of subsidiaries [member] |  |
Deferred Tax Assets And Liabilities [line items] |  |
Deferred tax liabilities | (482) |
Deferred revenue (IFRS 15) [member] |  |
Deferred Tax Assets And Liabilities [line items] |  |
Deferred tax liabilities |  | (984)
Unrealised net gains on foreign exchange [member] |  |
Deferred Tax Assets And Liabilities [line items] |  |
Deferred tax liabilities | € (258) | € (376)

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