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Merger - Narrative (Details) - Old Cartesian - shares	Dec. 05, 2023	Nov. 13, 2023
Business Acquisition [Line Items]
Percentage acquired		100.00%
Common stock
Business Acquisition [Line Items]
Issuance of shares (in shares)		224,099
Preferred stock | Series A Preferred Stock
Business Acquisition [Line Items]
Issuance of shares (in shares)	384,930.724	384,930.724

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Number of shares of equity interests issued or issuable to acquire entity.

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-SubTopic 30
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