Fair Value of Bitcoin Cash - Additional Information (Detail)	Mar. 31, 2022 BitcoinCash $ / shares	Jun. 30, 2021 BitcoinCash $ / shares
Fair Value Disclosures [Abstract]
Investment owned balance shares held by custodian \| BitcoinCash	314,330.91949799	298,405.98055893
BCH Fair Value Per Share \| $ / shares	$ 377.34	$ 520.99

Investment owned, balance, shares held by custodian.

No definition available.

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