2.2.0.25truefalse001001 - Document - Document And Entity Information {Elements}truetruefalse1falsefalsefalsefalse5/1/2011 - 5/1/2011 eol_0001104659-11-024215_STD_1_20110501_0http://www.sec.gov/CIK0000101507duration2011-05-01T00:00:002011-05-01T00:00:00pureStandardhttp://www.xbrl.org/2003/instancepure02true0rr_RiskReturnAbstractrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseRisk/Return:3false0dei_DocumentTypedeifalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00485BPOSfalsefalsefalsefalsefalseOtherus-types:SECReportItemTypenaThe type of document being provided (such as 10-K, 10-Q, N-1A, etc). The document type should be limited to the same value as the supporting SEC submission type. The acceptable values are as follows: S-1, S-3, S-4, S-11, F-1, F-3, F-4, F-9, F-10, 6-K, 8-K, 10, 10-K, 10-Q, 20-F, 40-F, N-1A, 485BPOS, NCSR, N-Q, and Other.No authoritative reference available.falsefalseDocument Type4false0dei_DocumentPeriodEndDatedeifalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002010-12-31falsefalsetruefalsefalseOtherxbrli:dateItemTypedateThe end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements this will be the filing date. 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It is commonly abbreviated as CIK.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation 12B -Number 240 -Section 12b -Subsection 1 falsefalseCentral Index Key7false0dei_AmendmentFlagdeifalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalsefalseOtherxbrli:booleanItemTypenaIf the value is true, then the document as an amendment to previously-filed/accepted document.No authoritative reference available.falsefalseAmendment Flag8false0dei_DocumentCreationDatedeifalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002011-04-29falsefalsetruefalsefalseOtherxbrli:dateItemTypedateThe date the document was made available and submitted, in CCYY-MM-DD format. The date of submission, date of acceptance by the recipient, and the document effective date are all potentially different.No authoritative reference available.falsefalseDocument Creation Date9false0dei_DocumentEffectiveDatedeifalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002011-05-01falsefalsetruefalsefalseOtherxbrli:dateItemTypedateThe date when a document, upon receipt and acceptance, becomes officially effective, in CCYY-MM-DD format. Usually it is a system-assigned date time value, but it may be declared by the submitter in some cases.No authoritative reference available.falsefalseDocument Effective Date10false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.usfunds.com/role/documentdocumentandentityinformation1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsetruefalse{dei_DocumentInformationDocumentAxis} : SummaryS000004790 Member {dei_LegalEntityAxis} : S000004790 Member {rr_ProspectusShareClassAxis} : C000013001 Member 5/1/2011 - 5/1/2011 eol_0001104659-11-024215_STD_1_20110501_0_396770x-9991031_396840x-9991016_429423x-9991047http://www.sec.gov/CIK0000101507duration2011-05-01T00:00:002011-05-01T00:00:00falsefalseAll American Equity Fund (Prospectus Summary)dei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_SummaryS000004790Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseAll American Equity Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_S000004790Memberdei_LegalEntityAxisexplicitMemberfalsefalseAll American Equity Fundrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_C000013001Memberrr_ProspectusShareClassAxisexplicitMemberpureStandardhttp://www.xbrl.org/2003/instancepure0OthernaNo definition available.No authoritative reference available.falsefalseAll American Equity Fund (Prospectus Summary) | All American Equity Fund | All American Equity Fund11true0rr_RiskReturnAbstractrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseRisk/Return:12false0dei_TradingSymboldeifalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00GBTFXfalsefalsefalsefalsefalseOtherxbrli:normalizedStringItemTypenormalizedstringTrading symbol of an instrument as listed on an exchange.No authoritative reference available.falsefalseTrading Symbol13false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.usfunds.com/role/documentdocumentandentityinformation1falsefalsefalse00falsefalsefalsefalsefalse3falsefalsetruefalse{dei_DocumentInformationDocumentAxis} : SummaryS000023574 Member {dei_LegalEntityAxis} : S000023574 Member {rr_ProspectusShareClassAxis} : C000069385 Member 5/1/2011 - 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5/1/2011 eol_0001104659-11-024215_STD_1_20110501_0_396770x-9991029_396840x-9991014_429423x-9991045http://www.sec.gov/CIK0000101507duration2011-05-01T00:00:002011-05-01T00:00:00falsefalseGlobal MegaTrends Fund (First Prospectus Summary)dei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_SummaryS000023573-1Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseGlobal MegaTrends Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_S000023573Memberdei_LegalEntityAxisexplicitMemberfalsefalseGlobal MegaTrends Fundrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_C000069384Memberrr_ProspectusShareClassAxisexplicitMemberpureStandardhttp://www.xbrl.org/2003/instancepure0OthernaNo definition available.No authoritative reference available.falsefalseGlobal MegaTrends Fund (First Prospectus Summary) | Global MegaTrends Fund | Global MegaTrends Fund17true0rr_RiskReturnAbstractrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseRisk/Return:18false0dei_TradingSymboldeifalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00MEGAXfalsefalsefalsefalsefalseOtherxbrli:normalizedStringItemTypenormalizedstringTrading symbol of an instrument as listed on an exchange.No authoritative reference available.falsefalseTrading Symbol19false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.usfunds.com/role/documentdocumentandentityinformation1falsefalsefalse00falsefalsefalsefalsefalse5falsefalsetruefalse{dei_DocumentInformationDocumentAxis} : SummaryS000004783 Member {dei_LegalEntityAxis} : S000004783 Member {rr_ProspectusShareClassAxis} : C000012994 Member 5/1/2011 - 5/1/2011 eol_0001104659-11-024215_STD_1_20110501_0_396770x-9991038_396840x-9991024_429423x-9991054http://www.sec.gov/CIK0000101507duration2011-05-01T00:00:002011-05-01T00:00:00falsefalseGold and Precious Metals Fund (Prospectus Summary)dei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_SummaryS000004783Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseGold and Precious Metals Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_S000004783Memberdei_LegalEntityAxisexplicitMemberfalsefalseGold and Precious Metals Fundrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_C000012994Memberrr_ProspectusShareClassAxisexplicitMemberpureStandardhttp://www.xbrl.org/2003/instancepure0OthernaNo definition available.No authoritative reference available.falsefalseGold and Precious Metals Fund (Prospectus Summary) | Gold and Precious Metals Fund | Gold and Precious Metals Fund20true0rr_RiskReturnAbstractrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseRisk/Return:21false0dei_TradingSymboldeifalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00USERXfalsefalsefalsefalsefalseOtherxbrli:normalizedStringItemTypenormalizedstringTrading symbol of an instrument as listed on an exchange.No authoritative reference available.falsefalseTrading Symbol22false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.usfunds.com/role/documentdocumentandentityinformation1falsefalsefalse00falsefalsefalsefalsefalse6falsefalsetruefalse{dei_DocumentInformationDocumentAxis} : SummaryS000004784-1 Member {dei_LegalEntityAxis} : S000004784 Member {rr_ProspectusShareClassAxis} : C000012995 Member 5/1/2011 - 5/1/2011 eol_0001104659-11-024215_STD_1_20110501_0_396770x-9991037_396840x-9991023_429423x-9991053http://www.sec.gov/CIK0000101507duration2011-05-01T00:00:002011-05-01T00:00:00falsefalseWorld Precious Minerals Fund (First Prospectus Summary)dei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_SummaryS000004784-1Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseWorld Precious Minerals Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_S000004784Memberdei_LegalEntityAxisexplicitMemberfalsefalseWorld Precious Minerals Fundrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_C000012995Memberrr_ProspectusShareClassAxisexplicitMemberpureStandardhttp://www.xbrl.org/2003/instancepure0OthernaNo definition available.No authoritative reference available.falsefalseWorld Precious Minerals Fund (First Prospectus Summary) | World Precious Minerals Fund | World Precious Minerals Fund23true0rr_RiskReturnAbstractrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseRisk/Return:24false0dei_TradingSymboldeifalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00UNWPXfalsefalsefalsefalsefalseOtherxbrli:normalizedStringItemTypenormalizedstringTrading symbol of an instrument as listed on an exchange.No authoritative reference available.falsefalseTrading Symbol25false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.usfunds.com/role/documentdocumentandentityinformation1falsefalsefalse00falsefalsefalsefalsefalse7falsefalsetruefalse{dei_DocumentInformationDocumentAxis} : SummaryS000004782-1 Member {dei_LegalEntityAxis} : S000004782 Member {rr_ProspectusShareClassAxis} : C000012993 Member 5/1/2011 - 5/1/2011 eol_0001104659-11-024215_STD_1_20110501_0_396770x-9991039_396840x-9991026_429423x-9991055http://www.sec.gov/CIK0000101507duration2011-05-01T00:00:002011-05-01T00:00:00falsefalseGlobal Resources Fund (First Prospectus Summary)dei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_SummaryS000004782-1Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseGlobal Resources Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_S000004782Memberdei_LegalEntityAxisexplicitMemberfalsefalseGlobal Resources Fundrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_C000012993Memberrr_ProspectusShareClassAxisexplicitMemberpureStandardhttp://www.xbrl.org/2003/instancepure0OthernaNo definition available.No authoritative reference available.falsefalseGlobal Resources Fund (First Prospectus Summary) | Global Resources Fund | Global Resources Fund26true0rr_RiskReturnAbstractrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseRisk/Return:27false0dei_TradingSymboldeifalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00PSPFXfalsefalsefalsefalsefalseOtherxbrli:normalizedStringItemTypenormalizedstringTrading symbol of an instrument as listed on an exchange.No authoritative reference available.falsefalseTrading Symbol28false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.usfunds.com/role/documentdocumentandentityinformation1falsefalsefalse00falsefalsefalsefalsefalse8falsefalsetruefalse{dei_DocumentInformationDocumentAxis} : SummaryS000023572 Member {dei_LegalEntityAxis} : S000023572 Member {rr_ProspectusShareClassAxis} : C000069383 Member 5/1/2011 - 5/1/2011 eol_0001104659-11-024215_STD_1_20110501_0_396770x-9991030_396840x-9991015_429423x-9991046http://www.sec.gov/CIK0000101507duration2011-05-01T00:00:002011-05-01T00:00:00falsefalseEastern European Fund (Prospectus Summary)dei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_SummaryS000023572Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseEastern European Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_S000023572Memberdei_LegalEntityAxisexplicitMemberfalsefalseEastern European Fundrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_C000069383Memberrr_ProspectusShareClassAxisexplicitMemberpureStandardhttp://www.xbrl.org/2003/instancepure0OthernaNo definition available.No authoritative reference available.falsefalseEastern European Fund (Prospectus Summary) | Eastern European Fund | Eastern European Fund29true0rr_RiskReturnAbstractrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseRisk/Return:30false0dei_TradingSymboldeifalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00EUROXfalsefalsefalsefalsefalseOtherxbrli:normalizedStringItemTypenormalizedstringTrading symbol of an instrument as listed on an exchange.No authoritative reference available.falsefalseTrading Symbol31false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.usfunds.com/role/documentdocumentandentityinformation1falsefalsefalse00falsefalsefalsefalsefalse9falsefalsetruefalse{dei_DocumentInformationDocumentAxis} : SummaryS000023575 Member {dei_LegalEntityAxis} : S000023575 Member {rr_ProspectusShareClassAxis} : C000069386 Member 5/1/2011 - 5/1/2011 eol_0001104659-11-024215_STD_1_20110501_0_396770x-9991027_396840x-9991011_429423x-9991043http://www.sec.gov/CIK0000101507duration2011-05-01T00:00:002011-05-01T00:00:00falsefalseGlobal Emerging Markets Fund (Prospectus Summary)dei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_SummaryS000023575Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseGlobal Emerging Markets Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_S000023575Memberdei_LegalEntityAxisexplicitMemberfalsefalseGlobal Emerging Markets Fundrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_C000069386Memberrr_ProspectusShareClassAxisexplicitMemberpureStandardhttp://www.xbrl.org/2003/instancepure0OthernaNo definition available.No authoritative reference available.falsefalseGlobal Emerging Markets Fund (Prospectus Summary) | Global Emerging Markets Fund | Global Emerging Markets Fund32true0rr_RiskReturnAbstractrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseRisk/Return:33false0dei_TradingSymboldeifalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00GEMFXfalsefalsefalsefalsefalseOtherxbrli:normalizedStringItemTypenormalizedstringTrading symbol of an instrument as listed on an exchange.No authoritative reference available.falsefalseTrading Symbol34false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.usfunds.com/role/documentdocumentandentityinformation1falsefalsefalse00falsefalsefalsefalsefalse10falsefalsetruefalse{dei_DocumentInformationDocumentAxis} : SummaryS000004785 Member {dei_LegalEntityAxis} : S000004785 Member {rr_ProspectusShareClassAxis} : C000012996 Member 5/1/2011 - 5/1/2011 eol_0001104659-11-024215_STD_1_20110501_0_396770x-9991036_396840x-9991021_429423x-9991052http://www.sec.gov/CIK0000101507duration2011-05-01T00:00:002011-05-01T00:00:00falsefalseChina Region Fund (Prospectus Summary)dei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_SummaryS000004785Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseChina Region Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_S000004785Memberdei_LegalEntityAxisexplicitMemberfalsefalseChina Region Fundrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldick0000101507_C000012996Memberrr_ProspectusShareClassAxisexplicitMemberpureStandardhttp://www.xbrl.org/2003/instancepure0OthernaNo definition available.No authoritative reference available.falsefalseChina Region Fund (Prospectus Summary) | China Region Fund | China Region Fund35true0rr_RiskReturnAbstractrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseRisk/Return:36false0dei_TradingSymboldeifalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00USCOXfalsefalsefalsefalsefalseOtherxbrli:normalizedStringItemTypenormalizedstringTrading symbol of an instrument as listed on an exchange.No authoritative reference available.falsefalseTrading Symbol37false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.usfunds.com/role/documentdocumentandentityinformation1falsefalsefalse00falsefalsefalsefalsefalse11falsefalsetruefalse{dei_DocumentInformationDocumentAxis} : SummaryS000004788 Member {dei_LegalEntityAxis} : S000004788 Member {rr_ProspectusShareClassAxis} : C000012999 Member 5/1/2011 - 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