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Long-term Borrowings - Additional Information (Detail) - EUR (€) | 1 Months Ended | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Apr. 01, 2023 | Mar. 31, 2022 | May 31, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2015
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt |  | € 17,353,000 | € 17,289,000 |  |  |  |  |  |  |
Long term debt increased repayment amount |  | € 187,500 |  |  |  |  |  |  |  |
Long-term debt interest rate |  | 6.308% |  |  |  |  |  |  |  |
Interest expense related to long-term borrowings |  | € 599,000 | € 423,000 | € 405,000 |  |  |  |  |  |
Bottom of range [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt interest rate |  | 3.00% | 3.00% |  |  |  |  |  |  |
Long-term borrowings [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt interest rate |  | 3.35% |  |  |  |  |  |  |  |
Long-term borrowings [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt interest rate |  | 8.15% |  |  |  |  |  |  |  |
Italian Financial Institution [Member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt interest rate basis | three-month Euribor (360) |  |  |  |  |  |  |  |  |
Long-term debt interest rate spread | 2.00% | 0.055% |  |  |  |  |  |  |  |
Long-term debt | € 4,000,000 | € 7,609,000 |  |  |  |  |  |  |  |
Six-month Euribor (360) plus a 2.5% spread long-term debt with final payment due August 2021 [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Cash receipt turnover percentage |  | 60.00% |  |  |  |  |  |  |  |
Earnings before interest, taxes, depreciation and amortization (EBITDA) percentage |  | 4.50% |  |  |  |  |  |  |  |
Debt Service Cover Ratio |  | 1.35% |  |  |  |  |  |  |  |
Six-month Euribor (360) plus a 2.5% spread long-term debt with final payment due August 2021 [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Net debt to EBITDA |  | 3.00% |  |  |  |  |  |  |  |
Six-month Euribor (360) plus a 2.5% spread long-term debt with final payment due August 2021 [member] | Romanian Subsidiary [Member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt nominal amount |  |  |  |  |  |  |  |  |  | € 10,000,000
Long-term debt maturity |  | August 2023 |  |  |  |  |  |  |  |
Long-term debt interest rate basis |  | six-month Euribor (360) |  |  |  |  |  |  |  |
Long-term debt interest rate spread |  | 2.50% |  |  |  |  |  |  |  |
Mortgage loan |  | € 16,628,000 |  |  |  |  |  |  |  |
Long-term debt |  |  | € 2,344,000 |  |  |  |  |  |  |
Six months euribor (360) plus 2.75% percentage spread long term debt with repayment until july 2025 [Member] | Romanian Subsidiary [Member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt maturity |  | July 2025 |  |  |  |  |  |  |  |
2.3% fixed long-term debt with final payment due January 2026 [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt nominal amount |  | € 7,000,000 |  |  |  |  |  |  |  |
Long-term debt maturity |  | January 2026 | January 2026 |  |  |  |  |  |  |
Long-term debt |  | € 2,358,000 | € 3,451,000 |  |  |  |  |  |  |
Long-term debt interest rate |  | 2.30% | 2.30% |  |  |  |  |  |  |
2.3% fixed long-term debt with final payment due January 2026 [member] | Matera [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Mortgage loan |  | € 14,000,000 |  |  |  |  |  |  |  |
0.42% Fixed long-term debt with final payment due December 2034 [Member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt nominal amount |  | 5,647,000 |  |  |  |  |  |  | € 4,181,000 |
Long-term debt maturity |  |  |  | December 2034 |  |  |  |  |  |
Mortgage loan |  | 13,936,000 |  |  |  |  |  |  |  |
Long-term debt |  | € 6,799,000 |  |  |  |  |  |  |  |
Long-term debt interest rate |  |  |  | 0.21% |  |  |  |  |  |
80% of six-months Euribor (360) plus a 0.95% spread long-term debt with final payment due January 2035 italian subsidiaries [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt nominal amount |  |  |  |  |  |  |  |  | € 435,000 |
Long-term debt maturity |  | January 2035 |  |  |  |  |  |  |  |
Long-term debt interest rate basis |  | Six-month Euribor (360) |  |  |  |  |  |  |  |
Long-term debt interest rate spread |  | 0.95% |  |  |  |  |  |  |  |
Mortgage loan |  | € 3,000,000 |  |  |  |  |  |  |  |
Long-term debt |  | 1,135,000 |  |  |  |  |  |  |  |
Long term debt disbursement amount |  | € 581,000 |  |  |  |  |  |  |  |
Long-term debt interest rate |  | 80.00% |  |  |  |  |  |  |  |
1.5% percentage fixed long-term debt with final payment due September 2027 | Swiss Subsidiary [Member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt nominal amount |  |  |  |  |  |  |  | € 378,000 |  |
Long-term debt |  | € 298,000 |  |  |  |  |  |  |  |
Long-term debt interest rate |  |  |  |  | 1.50% |  |  |  |  |
11.76% Fixed long-term debt with final payment due October 2023 [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt maturity |  | October 2023 | October 2023 |  |  |  |  |  |  |
Long-term debt |  |  | € 116,000 |  |  |  |  |  |  |
Long-term debt interest rate |  | 11.76% | 11.76% |  |  |  |  |  |  |
Fixed long-term debt with final payment due October 2023 | Brazilian Subsidiary [Member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | € 314,000 |  |  |
Six-month Euribor (360) plus a 2.75% spread long-term debt with final payment due March 2025 [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt maturity |  | March 2025 | March 2025 |  |  |  |  |  |  |
Long-term debt interest rate basis |  | Six-month Euribor (360) | Six-month Euribor (360) |  |  |  |  |  |  |
Long-term debt |  |  | € 3,215,000 |  |  |  |  |  |  |
Long-term debt interest rate |  | 2.75% | 2.75% |  |  |  |  |  |  |
Six-month Euribor (360) plus a 2.75% spread long-term debt with final payment due March 2025 [member] | Romanian Subsidiary [Member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt nominal amount |  |  | € 5,000,000 |  |  |  |  |  |  |
Long-term debt maturity |  |  | March 2025 |  |  |  |  |  |  |
Long-term debt |  | € 3,563,000 | € 3,215,000 |  |  |  |  |  |  |
Three-month Euribor (360) plus 2.00% spread long-term debt with final payment due December 2027 [Member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt maturity |  | December 2027 | December 2027 |  |  |  |  |  |  |
Long-term debt interest rate basis |  | Three-month Euribor (360) | Three-month Euribor (360) |  |  |  |  |  |  |
Long-term debt interest rate spread |  | 2.00% | 2.00% |  |  |  |  |  |  |
Long-term debt | € 4,000,000 | € 3,200,000 | € 4,000,000 |  |  |  |  |  |  |
0.055 Fixed Long-Term Debt With Final Payment Due December 2025 |  |  |  |  |  |  |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt maturity |  | December 2025 | December 2025 |  |  |  |  |  |  |
Long-term debt |  |  | € 38,000 |  |  | € 38,000 |  |  |  |
Long-term debt interest rate |  | 0.055% | 0.055% |  |  |  |  |  |  |

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