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Fair values (Tables)

12 Months Ended

Dec. 31, 2022

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
December 31, 2022
		Financial assets
Financial assets measured at fair value
Non-current portion of fair value of derivative financial instruments		1,315		—		1,315		—		1,315
Current portion of fair value of derivative financial instruments		1,092		—		1,092		—		1,092
		2,407

		Financial liabilities
Financial liabilities not measured at fair value
Long-term borrowings		44,375		—		45,549		—		45,549
		44,375

		Carrying amount		Fair value
				Level 1		Level 2		Level 3		Total
December 31, 2021
		Financial assets
Financial assets measured at fair value
Derivative financial instruments		417		—		417		—		417
		417

		Financial liabilities
Financial liabilities measured at fair value
Derivative financial instruments		92		—		92		—		92
		92
Financial liabilities not measured at fair value
Long-term borrowings		31,750		—		32,155		—		32,155
		31,750

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 Discounted cash flow Discount rate