Schedule of Investments (Parenthetical) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Schedule of Investments [Abstract]
Call options written, at value, premiums received	$ 1,504,277	$ 1,428,047

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