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Note 3 - Summary of Significant Accounting Policies - Waived Expenses Paid by Sponsor - Hashdex Bitcoin Futures ETF (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	[1]	Jun. 30, 2023	Jun. 30, 2022	[1]
Expenses waived by the Sponsor	$ 213,804	$ 707,463		$ 409,868	$ 1,052,981
Hashdex Bitcoin Futures ETF [Member]
Expenses waived by the Sponsor	$ 61,049	$ 0		$ 131,619	$ 0
[1] The Hashdex Bitcoin Futures ETF commenced operations on September 15, 2022.

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- Definition

Amount of expenses waived by sponsor.

+ References

No definition available.

+ Details

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Namespace Prefix:	tect_
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Balance Type:	credit
Period Type:	duration

X

- Details

Name:	srt_ConsolidatedEntitiesAxis=tect_HashdexBitcoinFuturesETFMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: