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Note 3 - Summary of Significant Accounting Policies - Total Brokerage Commissions Paid - 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]
Brokerage Commissions	$ 49,718	$ 329,754		$ 101,736	$ 454,860
Hashdex Bitcoin Futures ETF [Member]
Brokerage Commissions	$ 769	$ 0		$ 1,377	$ 0
[1] The Hashdex Bitcoin Futures ETF commenced operations on September 15, 2022.

X

- Definition

Amount of brokerage commissions paid including unrealized gain (loss).

+ References

No definition available.

+ Details

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Namespace Prefix:	tect_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

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