SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	6 Months Ended
Jun. 30, 2021 USD ($) $ / item
Significant Accounting Policies
Fee paid by Authorized Purchasers for each order placed to create one or more Creation Baskets or to redeem one or more baskets	1,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense \| $	$ 0
Redemption Baskets [Member]
Significant Accounting Policies
Number of units per basket	100,000

Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319

Name:	us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration