Name:	fil_FairValueAssetDerivates
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Derivatives not designated as hedge instruments under ASC 815, Futures contracts, under the line item 'Net realized gain on open futures contracts' in Statement of Assets and Liabilities.

No definition available.

Name:	fil_FairValueLiabilityDerivates
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Derivatives not designated as hedge instruments under ASC 815, Futures contracts, under the line item 'Net realized gain on open futures contracts' in Statement of Assets and Liabilities.

No definition available.

Name:	fil_FairValueNetDerivates
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Derivatives not designated as hedge instruments under ASC 815, Futures contracts, under the line item 'Net realized gain (loss) from investments and foreign currency transactions' in Statement of Operations.

No definition available.

Name:	fil_FuturesContractsUnderNetRealizedGainLossFromInvestments
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Derivatives not designated as hedge instruments under ASC 815, Futures contracts, under the line item 'Net unrealized (depreciation) on investments' in Statement of Operations.

No definition available.