Property and Equipment (Details) - Schedule of depreciation expense - USD ($)	3 Months Ended	6 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Schedule Of Depreciation Expense Abstract
Depreciation expense	$ 45,793	$ 111,559	$ 94,779	$ 218,119

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

No definition available.

Name:	evtn_DepreciationExpense
Namespace Prefix:	evtn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration