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Schedule of third party and related party expenses (Details) - EUR (€)	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Related Party Transaction [Line Items]
Total	€ 1,454,736	€ 2,040,390
Consultants and Other Third Parties [Member]
Related Party Transaction [Line Items]
Total	190,724	416,796
Materials and Supplies [Member]
Related Party Transaction [Line Items]
Total	890,580	911,246
Compensation [Member]
Related Party Transaction [Line Items]
Total	353,398	679,066
Travel and Entertainment [Member]
Related Party Transaction [Line Items]
Total	14,935	17,589
Other [Member]
Related Party Transaction [Line Items]
Total	5,098	15,693
Third Parties [Member]
Related Party Transaction [Line Items]
Total	1,368,836	1,407,865
Third Parties [Member] | Consultants and Other Third Parties [Member]
Related Party Transaction [Line Items]
Total	113,224	113,498
Third Parties [Member] | Materials and Supplies [Member]
Related Party Transaction [Line Items]
Total	890,580	911,246
Third Parties [Member] | Compensation [Member]
Related Party Transaction [Line Items]
Total	344,999	349,839
Third Parties [Member] | Travel and Entertainment [Member]
Related Party Transaction [Line Items]
Total	14,935	17,589
Third Parties [Member] | Other [Member]
Related Party Transaction [Line Items]
Total	5,098	15,693
Related Parties [Member]
Related Party Transaction [Line Items]
Total	85,899	632,525
Related Parties [Member] | Consultants and Other Third Parties [Member]
Related Party Transaction [Line Items]
Total	77,500	303,298
Related Parties [Member] | Materials and Supplies [Member]
Related Party Transaction [Line Items]
Total
Related Parties [Member] | Compensation [Member]
Related Party Transaction [Line Items]
Total	8,399	329,227
Related Parties [Member] | Travel and Entertainment [Member]
Related Party Transaction [Line Items]
Total
Related Parties [Member] | Other [Member]
Related Party Transaction [Line Items]
Total

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Amount of expense for research and development. Includes, but is not limited to, cost for computer software product to be sold, leased, or otherwise marketed and writeoff of research and development assets acquired in transaction other than business combination or joint venture formation or both. Excludes write-down of intangible asset acquired in business combination or from joint venture formation or both, used in research and development activity.

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