Represents number of operating leases.

No definition available.

Name:	evtv_LesseeOperatingLeaseNumberOfLeases
Namespace Prefix:	evtv_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of operating lease expense (income).

+ References

No definition available.

+ Details

Name:	evtv_OperatingLeaseExpenseIncome
Namespace Prefix:	evtv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of monthly lease payment due each month.

+ References

No definition available.

+ Details

Name:	evtv_OperatingLeaseMonthlyPayment
Namespace Prefix:	evtv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-6

+ Details

Name:	us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-3

+ Details

Name:	us-gaap_LesseeOperatingLeaseRenewalTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

+ Details

Name:	us-gaap_LesseeOperatingLeaseTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-4

+ Details

Name:	us-gaap_OperatingLeaseExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_LeaseContractualTermAxis=evtv_OfficeAndWarehouseLeasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LeaseContractualTermAxis=evtv_EquipmentLeasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LeaseContractualTermAxis=evtv_SRIEquipmentLeasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LeaseContractualTermAxis=evtv_SRIOfficeLeaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LeaseContractualTermAxis=evtv_ABCIOfficeLeaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LeaseContractualTermAxis=evtv_ToledoJetCenterMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LeaseContractualTermAxis=evtv_StorageSpaceInStocktonCalifornia1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LeaseContractualTermAxis=evtv_WarehouseSpaceInCoronaCaliforniaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=evtv_MastersTransportationInc1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=evtv_FireSprinklerAlarmMonitoringAndLandscapeMaintenanceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Note 11 - Leases (Details Textual)	3 Months Ended		9 Months Ended
Note 11 - Leases (Details Textual)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2022 USD ($)	Feb. 15, 2022	Feb. 04, 2020 USD ($)	Dec. 31, 2019 USD ($)	Feb. 28, 2017 USD ($)
Lessee, Operating Lease, Number of Leases	9		9
Operating Lease, Expense	$ 52,579		$ 180,746	$ 198,161
Lessee, Operating Lease, Liability, to be Paid	$ 11,491		$ 11,491
Operating Lease, Expense (Income)		$ (14,841)
Office and Warehouse Leases [Member]
Lessee, Operating Lease, Number of Leases	4		4
Equipment Leases [Member]
Lessee, Operating Lease, Number of Leases	5		5
S R I Equipment Leases [Member]
Operating Lease, Expense	$ 23,312	38,853	$ 69,936	66,055
S R I Office Lease [Member]
Operating Lease, Expense	8,190	4,550	18,200	11,270
A B C I Office Lease [Member]
Operating Lease, Expense	8,400	$ 8,400	25,200	$ 25,200
Toledo Jet Center [Member]
Operating Lease, Expense	$ 4,815		$ 12,038
Lessee, Operating Lease, Term of Contract (Year)						1 year
Lessee, Operating Lease, Renewal Term (Year)						1 year
Storage Space In Stockton California1 [Member]
Operating Lease Monthly Payment									$ 1,000
Warehouse Space In Corona California [Member]
Operating Lease Monthly Payment								$ 13,108
Lessee, Operating Lease, Liability, to be Paid								495,720
Warehouse Space In Corona California [Member] \| Masters Transportation Inc1 [Member]
Operating Lease Monthly Payment							$ 6,000
Warehouse Space In Corona California [Member] \| Forecast [Member]
Operating Lease Monthly Payment					$ 13,906
Warehouse Space In Corona California [Member] \| Forecast [Member] \| Masters Transportation Inc1 [Member]
Operating Lease Monthly Payment					$ 6,365
Warehouse Space In Corona California [Member] \| Fire Sprinkler Alarm Monitoring And Landscape Maintenance [Member]
Operating Lease Monthly Payment								$ 265