EIB loan guaranty (Details) € in Millions	Jun. 30, 2024 USD ($)	Jun. 30, 2024 EUR (€)	Dec. 31, 2023 USD ($)
Short-Term Debt [Line Items]
Total obligations	$ 11,099,253		$ 10,873,867
Unamortized discount
Carrying value of EIB loan guaranty	11,099,253		10,873,867
Less EIB loan guaranty (current portion)	(11,099,253)		(10,873,867)
Long-term EIB loan guaranty
EIB [Member]
Short-Term Debt [Line Items]
Total obligations	$ 11,099,253	€ 10.4	$ 10,873,867

Amount, after accumulated amortization, of debt discount.

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