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LEASES - Narratives (Details)	12 Months Ended
	Dec. 31, 2023 lease
Leases [Abstract]
Number of operating lease agreements (lease)	4

X

- Definition

Lessee, Operating Lease, Number Of Contracts Acquired

+ References

No definition available.

+ Details

Name:	exfy_LesseeOperatingLeaseNumberOfContractsAcquired
Namespace Prefix:	exfy_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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