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Fair values (Tables) | 6 Months Ended
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Jun. 30, 2025
Disclosure of fair value measurement of assets [abstract] |
Fair values measurement | Fair values measurement
|  | Carrying amount |  | Fair value
|  |  |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
June 30, 2025 |  |  |  |  |  |  |  |  |  |
|  | Financial assets |  |  |  |  |  |  |  |
Financial assets measured at fair value |  |  |  |  |  |  |  |  |  |
Non-current portion of fair value of derivative financial instruments |  | — |  | — |  | — |  | — |  | —
Current portion of fair value of derivative financial instruments |  | 334 |  | — |  | 334 |  | — |  | 334
|  | 334 |  |  |  |  |  |  |  |
|  | Financial liabilities |  |  |  |  |  |  |  |
Financial liabilities not measured at fair value |  |  |  |  |  |  |  |  |  |
Long-term borrowings |  | 61,425 |  | — |  | 62,811 |  | — |  | 62,811
Financial liabilities |  | 51,520 |  | — |  | 52,122 |  | — |  | 52,122
|  | 112,945 |  |  |  |  |  |  |  |
11. Fair values (continued)
|  | Carrying amount |  | Fair value
|  |  |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
December 31, 2024 |  |  |  |  |  |  |  |  |  |
|  | Financial assets |  |  |  |  |  |  |  |
Financial assets measured at fair value |  |  |  |  |  |  |  |  |  |
Non-current portion of fair value of derivative financial instruments |  | 181 |  | — |  | 181 |  | — |  | 181
Current portion of fair value of derivative financial instruments |  | 442 |  | — |  | 442 |  | — |  | 442
|  | 623 |  |  |  |  |  |  |  |
|  | Financial liabilities |  |  |  |  |  |  |  |
Financial liabilities not measured at fair value |  |  |  |  |  |  |  |  |  |
Long-term borrowings |  | 66,540 |  | — |  | 68,137 |  | — |  | 68,137
Financial liabilities |  | 52,471 |  | — |  | 53,394 |  | — |  | 53,394
|  | 119,011 |  |  |  |  |  |  |  |
Valuation techniques and significant unobservable inputs | Valuation techniques and significant unobservable inputs
Financial instruments measured at fair value |  |  |  |
Type |  | Valuation Techniques |  | Significant unobservable inputs
Derivative financial instruments: |  |  |  |
Interest Rate Swap |  | Discounted cash flow |  | Discount rate
Financial instruments not measured at fair value |  |  |  |
Asset and liabilities not measured at fair value |  |  |  |
Type |  | Valuation Techniques |  | Significant unobservable inputs
Long-term borrowings and financial liabilities |  | Discounted cash flow |  | Discount rate

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