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Revenue Recognition - Additional Information (Details)	Sep. 30, 2021 USD ($)
Revenue From Contract With Customer [Abstract]
Maximum amount of reduction in monthly co-payments of each prescription	$ 100

X

- Definition

The amount of maximum reduction in monthly co-payments of each prescription.

+ References

No definition available.

+ Details

Name:	ecor_MaximumAmountOfReductionInMonthlyCoPaymentsOfEachPrescription
Namespace Prefix:	ecor_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_RevenueFromContractWithCustomerAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration