Note 3 - Summary of Significant Accounting Policies - Hashdex Bitcoin Futures ETF (Details Textual)	12 Months Ended			16 Months Ended
	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2023 USD ($) shares
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense | $	$ 0	$ 0	$ 0	$ 0
Money Market Funds, at Carrying Value | $	$ 120,047,840	188,640,417	$ 32,968,833	$ 120,047,840
Hashdex Bitcoin Futures ETF [Member]
Authorized Purchaser, Minimum Level of Creation Baskets, Shares (in shares) | shares	10,000			10,000
Authorized Purchaser, Redemption Baskets, Minimum Blocks of Shares (in shares) | shares	10,000			10,000
Minimum Level of Shares Per Redemption Basket (in shares) | shares	50,000			50,000
Minimum Number of RedemptionBaskets	5			5
Money Market Funds, at Carrying Value | $	$ 1,867,663	$ 701,969		$ 1,867,663
Hashdex Bitcoin Futures ETF [Member] | Teucrium Trading, LLC [Member]
Management Fee, Percentage of Average Daily Net Assets	0.94%