XML 72 R59.htm IDEA: XBRL DOCUMENT v3.20.2

Commitment and Contingencies (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2020 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Aggregate consideration paid to NU for agreement obligations	$ 8,229

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

Payments for License Agreements

+ References

No definition available.

+ Details

Name:	xcur_PaymentsforLicenseAgreements
Namespace Prefix:	xcur_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration