v3.26.1
Finance costs (Details) - USD ($)
$ in Thousands
3 Months Ended
9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Statement [Line Items]
Working capital facility
$ 228
$ 357
$ 762
$ 1,442
Promissory notes
0
0
0
17
Interest on VTB loan
0
0
0
16
Lease interest (note 11)
70
69
202
214
Equity issuance costs
0
1
0
50
Changes in fair value of derivative warrants
0
138
(35)
96
Accretion on government payable
85
26
447
90
Finance costs
383
591
1,376
1,925
Cash [Member]
Statement [Line Items]
Working capital facility
230
343
762
1,373
Promissory notes
0
0
0
0
Interest on VTB loan
0
0
0
16
Lease interest (note 11)
70
69
202
214
Equity issuance costs
0
0
0
18
Changes in fair value of derivative warrants
0
0
0
0
Accretion on government payable
0
0
0
0
Finance costs
300
412
964
1,621
Non Cash [Member]
Statement [Line Items]
Working capital facility
(2)
14
0
69
Promissory notes
0
0
0
17
Interest on VTB loan
0
0
0
0
Lease interest (note 11)
0
0
0
0
Equity issuance costs
0
1
0
32
Changes in fair value of derivative warrants
0
138
(36)
96
Accretion on government payable
85
26
448
90
Finance costs
$ 83
$ 179
$ 412
$ 304
X
- References
No definition available.
+ Details
Name:
elva_AccretionOnGovernmentAssistance
Namespace Prefix:
elva_
Data Type:
xbrli:monetaryItemType
Balance Type:
credit
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
elva_CashAndNonCashFinanceCosts
Namespace Prefix:
elva_
Data Type:
xbrli:monetaryItemType
Balance Type:
debit
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
elva_CashFinanceCosts
Namespace Prefix:
elva_
Data Type:
xbrli:monetaryItemType
Balance Type:
debit
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
elva_ChangesInFvOfDerivativeWarrants
Namespace Prefix:
elva_
Data Type:
xbrli:monetaryItemType
Balance Type:
credit
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
elva_EquityIssuanceCosts
Namespace Prefix:
elva_
Data Type:
xbrli:monetaryItemType
Balance Type:
credit
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
elva_InterestOnVtbLoan
Namespace Prefix:
elva_
Data Type:
xbrli:monetaryItemType
Balance Type:
credit
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
elva_LeaseInterest
Namespace Prefix:
elva_
Data Type:
xbrli:monetaryItemType
Balance Type:
credit
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
elva_NonCashFinanceCosts
Namespace Prefix:
elva_
Data Type:
xbrli:monetaryItemType
Balance Type:
debit
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
elva_SettlementFeeOnPromissoryNote
Namespace Prefix:
elva_
Data Type:
xbrli:monetaryItemType
Balance Type:
credit
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
elva_StatementLineItems
Namespace Prefix:
elva_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
elva_WorkingCapitalFacility
Namespace Prefix:
elva_
Data Type:
xbrli:monetaryItemType
Balance Type:
credit
Period Type:
duration
X
- Details
Name:
ifrs-full_ClassesOfFinancialInstrumentsAxis=elva_FinanceCostsCashMember
Namespace Prefix:
Data Type:
na
Balance Type:
Period Type:
X
- Details
Name:
ifrs-full_ClassesOfFinancialInstrumentsAxis=elva_FinanceCostsNonCashMember
Namespace Prefix:
Data Type:
na
Balance Type:
Period Type: