Fair value of financial instruments (Details) $ in Thousands	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Financial liabilities
Long-term debt	$ 40,123	$ 40,086
Debt, carrying value	40,000	40,000
Level 3
Financial liabilities
Fair value of long-term debt	39,900	39,600
Long-term debt	$ 40,100	$ 40,100
Risk-free interest rate \| Maximum
Financial liabilities
Debt Instrument, Measurement Input	5.49	0.0494
Risk-free interest rate \| Minimum
Financial liabilities
Debt Instrument, Measurement Input	5.44	0.0445
Volatility
Financial liabilities
Debt Instrument, Measurement Input	75	0.95
Remaining term
Financial liabilities
Remaining term (years)	3 months 18 days	7 months 6 days

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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- Definition

Value of input used to measure debt instrument, including, but not limited to, convertible and non-convertible debt.

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- References

No definition available.

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- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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- Definition

Period between issuance and maturity of investment in tranche liability measured at fair value, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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