XML 82 R63.htm IDEA: XBRL DOCUMENT
v3.21.2

Commitment and Contingencies (Details) $ in Thousands | Sep. 30, 2021 USD ($)
--- | ---
Commitments and Contingencies Disclosure [Abstract] |
Aggregate consideration paid to NU for agreement obligations | $ 11,413

X
- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Aggregate Payments Made To Date For License Agreements + References No definition available. + Details
Name: | xcur_AggregatePaymentsMadeToDateForLicenseAgreements
Namespace Prefix: | xcur_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant