Note 3 - Summary of Significant Accounting Policies - Total Brokerage Commissions Paid - Hashdex Bitcoin Futures ETF (Details) - USD ($)	4 Months Ended	12 Months Ended
Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Brokerage Commissions		$ 208,205	$ 667,746	$ 240,134
Hashdex Bitcoin Futures ETF [Member]
Brokerage Commissions	$ 2,217	$ 2,546	$ 2,217	$ 0

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

No definition available.

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