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Long-term Borrowings - Summary of Detailed Information About Loans Outstanding (Detail) - EUR (€) € in Thousands | Dec. 31, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Jan. 31, 2022
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Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |
Total long-term borrowings | € 18,720 | € 2,500 | € 17,353 |
Less current installments | (4,532) |  | (5,200) |
Long-term borrowings | 14,188 |  | 12,153 |
Six-month Euribor (360) plus a 2.5% spread long-term debt with final payment due July 2025 [member] |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |
Total long-term borrowings | 1,313 |  | 3,563 |
2.3% fixed long-term debt with final payment due January 2026 [member] |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |
Total long-term borrowings | 1,240 |  | 2,358 |
1.5% fixed long-term debt with final payment due September 2027 [member] |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |
Total long-term borrowings | 217 |  | 298 |
0.21% fixed long-term debt with final payment due December 2034 [member] |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |
Total long-term borrowings | 7,734 |  | 6,799 |
80% of six-months Euribor (360) plus a 0.95% spread long-term debt with final payment due January 2035 [member] |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |
Total long-term borrowings | 1,035 |  | 1,135 |
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] |  |  |  |
Total long-term borrowings | 2,400 |  | € 3,200 | € 4,000
Three-month Euribor (360) plus a 2.95% spread long-term debt with final payment due December 2028 |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |
Total long-term borrowings | 2,526 |  |  |
2.5% Fixed rate long-term debt to majority shareholder with final payment due March 2027 |  |  |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |  |  |
Total long-term borrowings | € 2,255 |  |  |

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