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Fair value measurements - Financing Note (Details) - Financing Note	3 Months Ended	12 Months Ended
	Mar. 31, 2024 Y $ / shares	Dec. 31, 2023 $ / shares Y
Fair Value measurements
Maturity date	Dec. 19, 2026	Dec. 19, 2026
Principal
Fair Value measurements
Debt instrument, measurement input	2,330	6,805,000
Discount rate
Fair Value measurements
Debt instrument, measurement input	0.2500	0.2000
Note term
Fair Value measurements
Debt instrument, measurement input | Y	2.72	2.97
Stock Price
Fair Value measurements
Debt instrument, measurement input | $ / shares	2.26	3.35
Risk rate
Fair Value measurements
Debt instrument, measurement input	0.0434	0.0392
Volatility
Fair Value measurements
Debt instrument, measurement input	0.3633	0.3249

X

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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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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