Condensed Schedule of Investments (Parenthetical) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Schedule Of Investments [Abstract]
Options purchased at cost	$ 0	$ 198,400
Premium received	$ 0	$ 211,888

Represents the premiums earned on the open option contracts held by the fund. This item is not required to be disclosed in Regulation S-X but is commonly reported by some funds.

No definition available.

Name:	us-gaap_OpenOptionContractsWrittenPremiums
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant