Commitments and Contingencies (Details) $ in Millions	12 Months Ended
Dec. 31, 2023 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Future minimum payments	$ 0.1
Future minimum payments, thereafter	$ 0.1

Operating Lease, Future Minimum, Annual Maintenance Payments, Due Thereafter

No definition available.

Name:	angn_OperatingLeaseFutureMinimumAnnualMaintenancePaymentsDueThereafter
Namespace Prefix:	angn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration