Fair Value of Ethereum - Additional Information (Details)	Jun. 30, 2022 Ethereum $ / shares	Dec. 31, 2021 Ethereum $ / shares
Fair Value Disclosures [Abstract]
Investment owned balance shares held by custodian \| Ethereum	3,076,157.47984685	3,114,532.09753906
ETH Fair value per share \| $ / shares	$ 1,019.72	$ 3,644.75

Investment owned, balance, shares held by custodian.

No definition available.

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Namespace Prefix:	ethe_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant