3.22.4 html 3 22 1 true 2 0 false 2 false false R1.htm 000000 - Document - Document and Entity Information {Elements} Sheet http://www.bridgeway.com/role/DocumentDocumentandEntityInformationElements Document and Entity Information 1 false false R2.htm 000011 - Disclosure - Risk/Return Detail Data {Elements} - Omni Small-Cap Value Fund Sheet http://www.bridgeway.com/role/DisclosureRiskReturnDetailDataElementsOmniSmallCapValueFund Risk/Return Detail Data- Omni Small-Cap Value Fund 2 false false All Reports Book All Reports [dq-0541-Series-Id-Member-Not-Declared] Submission type 497 should have S000004419Member declared as a domainItemType element. bfi-20230317.xsd [dq-0541-Series-Id-Member-Not-Declared] Submission type 497 should have S000004421Member declared as a domainItemType element. bfi-20230317.xsd [dq-0541-Series-Id-Member-Not-Declared] Submission type 497 should have S000004423Member declared as a domainItemType element. bfi-20230317.xsd [dq-0541-Series-Id-Member-Not-Declared] Submission type 497 should have S000004424Member declared as a domainItemType element. bfi-20230317.xsd [dq-0541-Series-Id-Member-Not-Declared] Submission type 497 should have S000004427Member declared as a domainItemType element. bfi-20230317.xsd [dq-0541-Series-Id-Member-Not-Declared] Submission type 497 should have S000030751Member declared as a domainItemType element. bfi-20230317.xsd d405619d497.htm bfi-20230317.xsd bfi-20230317_cal.xml bfi-20230317_def.xml bfi-20230317_lab.xml bfi-20230317_pre.xml http://xbrl.sec.gov/dei/2021 http://xbrl.sec.gov/rr/2021 true true