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Merger and Related Transactions - Narrative (Details) $ in Thousands		12 Months Ended
	Jun. 01, 2023 USD ($) board_member shares	Dec. 31, 2024 USD ($) shares	Dec. 31, 2023 USD ($) shares
Reverse Recapitalization [Line Items]
Number of members of the board of directors | board_member	9
Recapitalization exchange ratio	0.0181
Common stock, shares issued (in shares) | shares	8,387,025	11,043,837	9,618,178
Common stock, shares outstanding (in shares) | shares	8,387,025	11,029,382	9,603,723
Gain on extinguishment of promissory notes payable	$ 600	$ 0	$ 605
Transaction costs		$ 2,900
Bridge Loan Between Angion And Former Elicio | Notes Payable
Reverse Recapitalization [Line Items]
Debt instrument, face amount	$ 12,500
Debt instrument, issuance discount percent	20.00%
Bridge Loan Between Angion And Former Elicio, Discount Amount, Initial Closing | Notes Payable
Reverse Recapitalization [Line Items]
Debt instrument, face amount	$ 6,250
Bridge Loan Between Angion And Former Elicio, Initial Closing | Notes Payable
Reverse Recapitalization [Line Items]
Debt instrument, face amount	5,000
Bridge Loan Between Angion And Former Elicio, Discount Amount, Additional Closing | Notes Payable
Reverse Recapitalization [Line Items]
Debt instrument, face amount	6,250
Bridge Loan Between Angion And Former Elicio, Additional Closing | Notes Payable
Reverse Recapitalization [Line Items]
Debt instrument, face amount	$ 5,000
Angion Common Stock
Reverse Recapitalization [Line Items]
Stock split, conversion ratio	0.1
Former Elicio
Reverse Recapitalization [Line Items]
Number of members of the board of directors | board_member	6

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