XML 112 R60.htm IDEA: XBRL DOCUMENT v3.25.2

Lease liability (Details 2) $ in Thousands	9 Months Ended
	Jun. 30, 2025 USD ($)
Lease liability
2025	$ 627
2026	528
2027	544
2028	560
2029	$ 284

X

- References

No definition available.

+ Details

Name:	elva_DisclosureLeaseLiabilityAbstract
Namespace Prefix:	elva_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	elva_MinimumLeasePaymentsReceivableUnderNoncancellableOperatingLeaseFirstYear
Namespace Prefix:	elva_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	elva_MinimumLeasePaymentsReceivableUnderNoncancellableOperatingLeaseFourYear
Namespace Prefix:	elva_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	elva_MinimumLeasePaymentsReceivableUnderNoncancellableOperatingLeaseNextTwelvenMonth
Namespace Prefix:	elva_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	elva_MinimumLeasePaymentsReceivableUnderNoncancellableOperatingLeaseSecondYear
Namespace Prefix:	elva_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	elva_MinimumLeasePaymentsReceivableUnderNoncancellableOperatingLeaseThirdYear
Namespace Prefix:	elva_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration