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Creation and Redemption of Creation Units (Details Narrative)	9 Months Ended
	Sep. 30, 2025 shares
Equity [Abstract]
Block of shares issued	5,000

X

- Definition

Number of shares in block issued (a "Basket").

+ References

No definition available.

+ Details

Name:	brrr_BlockOfSharesIssued
Namespace Prefix:	brrr_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_EquityAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration