| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | MILL VALLEY COMMUNITY ACTION NETWORK UNITES CITIZENS IN SOUTHERN MARIN COUNTY, CALIFORNIA TO SUPPORT POLICIES AND LEGISLATION THAT PROMOTE EQUALITY, CIVIL RIGHTS, PUBLIC HEALTH AND ENVIRONMENTAL SUSTAINABILITY. WE ENGAGE IN EDUCATION PROGRAMS, PUBLIC POLICY CAMPAIGNS, AND LOBBYING AND PROMOTE CIVIC ENGAGEMENT. WE ALSO SUPPORT OTHER ORGANIZATIONS INVOLVED IN SIMILAR EFFORTS. |
| IRS990/AllOtherContributionsAmt | 0 | 143170 |
| IRS990/AmendedReturnInd | 0 | X |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | false |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | EILEEN FISHER |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 4157307360 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 321 LINDA VISTA AVE |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | MILL VALLEY |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 94941 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 12334 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 20154 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | false |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 2824 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 2824 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 143170 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 124800 |
| IRS990/CYInvestmentIncomeAmt | 0 | 8 |
| IRS990/CYOtherExpensesAmt | 0 | 10458 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 7920 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 135258 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 143178 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/Desc | 0 | MILL VALLEY AND MARIN RESIDENTS STANDING UP FOR AMERICAN VALUES AND DEMOCRACY, THROUGH ADVOCACY FOR CIVIL RIGHTS, IMMIGRATION, WOMEN'S RIGHTS, THE ENVIRONMENT AND MORE. IN ADDITION TO OUR DIRECT AND REGIONAL ACTIVITIES, OUR AIRLIFT PROJECT SUPPORTS ORGANIZATIONS IN OTHER REGIONS WHICH ADVOCATE ON SIMILAR ISSUES AND CIVICALLY ENGAGE PEOPLE IN THEIR COMMUNITIES. |
| IRS990/DescribedInSection501c3Ind | 0 | false |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | false |
| IRS990/DoingBusinessAsName/BusinessNameLine1Txt | 0 | MVCAN AND AIRLIFT |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 135258 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 1855 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 1855 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 6.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 6.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 6.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 6.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | REBECCA BRACKMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | BERNARD CATALINOTTO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | JUNE COOPERMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | EILEEN FISHER |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TREASURER |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | false |
| IRS990/FormationYr | 0 | 2017 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 4 |
| IRS990/GrantAmt | 0 | 124800 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 124800 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 124800 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | true |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 143178 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 4 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 1330 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 1330 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 8 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 8 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | CA |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingCashInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | MILL VALLEY COMMUNITY ACTION NETWORK UNITES CITIZENS IN SOUTHERN MARIN COUNTY, CALIFORNIA TO SUPPORT POLICIES AND LEGISLATION THAT PROMOTE EQUALITY, CIVIL RIGHTS, PUBLIC HEALTH AND ENVIRONMENTAL SUSTAINABILITY. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 12334 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 20254 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | true |
| IRS990/NondeductibleContriDisclInd | 0 | true |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501cInd | 0 | X |
| IRS990/OrgDoesNotFollowFASB117Ind | 0 | X |
| IRS990/OtherExpensesGrp/Desc | 0 | PROGRAM EXPENSES |
| IRS990/OtherExpensesGrp/Desc | 1 | BANKING CHARGES |
| IRS990/OtherExpensesGrp/Desc | 2 | MEMBERSHIP EXPENSES |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 3257 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 992 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 200 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 3257 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 992 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 200 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PoliticalCampaignActyInd | 0 | true |
| IRS990/PrincipalOfficerNm | 0 | EILEEN FISHER |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 673653 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 663601 |
| IRS990/PYInvestmentIncomeAmt | 0 | 10 |
| IRS990/PYOtherExpensesAmt | 0 | 10890 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | -828 |
| IRS990/PYTotalExpensesAmt | 0 | 674491 |
| IRS990/PYTotalRevenueAmt | 0 | 673663 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 7920 |
| IRS990/RegularMonitoringEnfrcInd | 0 | false |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | false |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RtnEarnEndowmentIncmOthFndsGrp/BOYAmt | 0 | 12334 |
| IRS990/RtnEarnEndowmentIncmOthFndsGrp/EOYAmt | 0 | 20254 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 100 |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleC/Form1120POLFiledInd | 0 | false |
| IRS990ScheduleC/PoliticalExpendituresAmt | 0 | 500 |
| IRS990ScheduleC/SupplementalInformationDetail/ExplanationTxt | 0 | IN SUPPORTING PROGRESSIVE VALUES AND POLICIES, A PART OF OUR WORK INVOLVES DIRECT AND INDIRECT POLITICAL CAMPAIGN ACTIVITIES. 1) THROUGH OUR AIRLIFT PROJECT WE PROVIDE FINANCIAL SUPPORT TO OTHER 501(C)(4)S WHO ARE DOING BOTH ISSUE ADVOCACY AND COMMUNITY ORGANIZING AROUND THE COUNTRY. A PORTION OF THE ACTIVITIES FUNDED BY THESE GRANTS INVOLVES DIRECT AND INDIRECT POLITICAL CAMPAIGN ACTIVITIES BY THESE 501(C)(4)S. 2) WE HELP OUR MEMBERS FIND OPPORTUNITIES TO PARTICIPATE IN GET OUT THE VOTE (GOTV) AND OTHER VOTER ENGAGEMENT ACTIVITIES BEING CONDUCTED BY POLITICAL CAMPAIGNS. 3) ON OCCASION WE HOLD CANDIDATE FORUMS OR ENDORSE CANDIDATES FOR POLITICAL OFFICE, PRIMARILY AT THE LOCAL/REGIONAL LEVEL. |
| IRS990ScheduleC/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | SCHEDULE C, PART I-A, LINE 1 |
| IRS990ScheduleC/VolunteerHoursCnt | 0 | 307 |
| IRS990ScheduleI/GrantRecordsMaintainedInd | 0 | true |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 0 | 11500 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 1 | 12800 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 2 | 6000 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 3 | 11500 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 4 | 11500 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 5 | 6500 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 6 | 10500 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 7 | 11500 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 8 | 6000 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 9 | 6500 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 10 | 14000 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 11 | 14000 |
| IRS990ScheduleI/RecipientTable/IRCSectionDesc | 0 | 4 |
| IRS990ScheduleI/RecipientTable/IRCSectionDesc | 1 | 4 |
| IRS990ScheduleI/RecipientTable/IRCSectionDesc | 2 | 4 |
| IRS990ScheduleI/RecipientTable/IRCSectionDesc | 3 | 4 |
| IRS990ScheduleI/RecipientTable/IRCSectionDesc | 4 | 4 |
| IRS990ScheduleI/RecipientTable/IRCSectionDesc | 5 | 4 |
| IRS990ScheduleI/RecipientTable/IRCSectionDesc | 6 | 4 |
| IRS990ScheduleI/RecipientTable/IRCSectionDesc | 7 | 4 |
| IRS990ScheduleI/RecipientTable/IRCSectionDesc | 8 | 4 |
| IRS990ScheduleI/RecipientTable/IRCSectionDesc | 9 | 4 |
| IRS990ScheduleI/RecipientTable/IRCSectionDesc | 10 | 4 |
| IRS990ScheduleI/RecipientTable/IRCSectionDesc | 11 | 4 |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 0 | COMMUNITY ORGANIZING |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 1 | COMMUNITY ORGANIZING |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 2 | COMMUNITY ORGANIZING |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 3 | COMMUNITY ORGANIZING |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 4 | COMMUNITY ORGANIZING |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 5 | COMMUNITY ORGANIZING |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 6 | COMMUNITY ORGANIZING |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 7 | COMMUNITY ORGANIZING |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 8 | COMMUNITY ORGANIZING |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 9 | COMMUNITY ORGANIZING |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 10 | COMMUNITY ORGANIZING |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 11 | COMMUNITY ORGANIZING |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 0 | CAROLINA FEDERATION |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 1 | CASE ACTION FUND |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 2 | COMMUNITIES FOR A NEW CALIFORNIA |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 3 | PEOPLE'S ACTION |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 4 | LEADERS IGNITING TRANSFORMATION |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 5 | LIVING UNITED FOR CHANGE IN ARIZONA |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 6 | ACTION FOR LIBERATION |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 7 | MOVE TEXAS ACTION FUND |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 8 | TIDES ADVOCACY - DEPOSITORY ACCOUNT |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 9 | PENNSYLVANIA STANDS UP |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 10 | TIDES ADVOCACY - DEPOSITORY ACCOUNT |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 11 | PROGRESSIVE LEADERSHIP ALLIANCE OF |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine2Txt | 0 | DOWN HOME NORTH CAROLINA |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine2Txt | 1 | ACTION FUND |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine2Txt | 2 | LUCHA |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine2Txt | 3 | MICHIGAN LIBERATION |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine2Txt | 4 | ORANGE COUNTY COMMUNITY ENGAGEMENT |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine2Txt | 5 | DREAM DEFENDERS |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine2Txt | 6 | NEVADA ACTION FUND |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 0 | 830936641 |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 1 | 454874128 |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 2 | 273431865 |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 3 | 262613701 |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 4 | 823166802 |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 5 | 271398645 |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 6 | 831522206 |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 7 | 463339204 |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 8 | 943153687 |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 9 | 832880678 |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 10 | 943153687 |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 0 | PO BOX 61113 |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 1 | 2150 HIGHLAND AVE |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 2 | 5429 MADISON AVENUE |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 3 | 2125 WEST NORTH AVE |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 4 | 2201 N MARTIN LUTHER KING DRIVE |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 5 | 5716 N 19TH AVENUE |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 6 | 3159 HELEN ST |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 7 | 1023 N PINE ST |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 8 | PO BOX 399381 |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 9 | 15 N LIME STREET |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 10 | PO BOX 399381 |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 11 | 2330 PASEO DEL PRADO C109 |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 0 | DURHAM |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 1 | PHOENIX |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 2 | SACRAMENTO |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 3 | CHICAGO |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 4 | MILWAUKEE |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 5 | PHOENIX |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 6 | DETROIT |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 7 | SAN ANTONIO |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 8 | SAN FRANCISCO |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 9 | LANCASTER |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 10 | SAN FRANCISCO |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 11 | LAS VEGAS |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 0 | NC |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 1 | AZ |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 2 | CA |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 3 | IL |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 4 | WI |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 5 | AZ |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 6 | MI |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 7 | TX |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 8 | CA |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 9 | PA |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 10 | CA |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 11 | NV |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 0 | 27715 |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 1 | 85016 |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 2 | 95841 |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 3 | 60647 |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 4 | 53212 |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 5 | 85015 |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 6 | 48207 |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 7 | 78202 |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 8 | 931399381 |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 9 | 17602 |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 10 | 931399381 |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 11 | 89102 |
| IRS990ScheduleI/SupplementalInformationDetail/ExplanationTxt | 0 | GRANTEES PROVIDE A SHORT REPORT WITH SUFFICIENT INFORMATION CONFIRMING THAT THE GRANTED FUNDS WERE USED FOR PURPOSES CONSISTENT WITH THE TERMS OF THE GRANT AGREEMENT. IT IS TO SPECIFICALLY CONTAIN: A) A SHORT DESCRIPTION OF THE ACTIVITIES CONDUCTED BY THE GRANTEE DURING THE PERIOD USING THE GRANTED FUNDS AND THE AMOUNT OF GRANTED FUNDS USED FOR EACH TYPE OF ACTIVITY. THIS DESCRIPTION MUST CONTAIN SUFFICIENT DETAIL FOR US TO IDENTIFY WHICH ACTIVITIES CONSTITUTED DIRECT OR INDIRECT PARTICIPATION OR INTERVENTION IN ANY POLITICAL CAMPAIGN ON BEHALF OF (OR IN OPPOSITION TO) ANY CANDIDATE FOR PUBLIC OFFICE, WITHIN THE MEANING OF THE TREASURY REGULATIONS UNDER SECTION 501(C)(4) OF THE CODE; B) GRANTEES MUST KEEP APPROPRIATE BUSINESS RECORDS RELATED TO ACTIVITIES PERFORMED UNDER THE GRANT AND MAKE THEM AVAILABLE TO US IF NECESSARY AND REQUESTED. |
| IRS990ScheduleI/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | SCHEDULE I, PAGE 1, PART I, LINE 2 |
| IRS990ScheduleI/TotalOtherOrgCnt | 0 | 13 |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | true |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | TAX PREPARER ACCIDENTALLY E-FILED THE INCOMPLETE FORM 990 BEFORE IT HAD BEEN REVIEWED BY THE BOARD. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | AFTER THE FINAL DRAFT OF THE FORM 990 AND SCHEDULES ARE PREPARED BY A BOARD MEMBER IN CONJUNCTION WITH OUR ACCOUNTANT, THE DRAFT MATERIALS ARE REVIEWED BY THE FULL BOARD OF DIRECTORS AND ANY NECESSARY CHANGES MADE. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | MVCAN MAKES ITS GOVERNING DOCUMENTS AVAILABLE TO THE PUBLIC UPON REQUEST. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990, PAGE 1, ITEM B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990, PAGE 6, PART VI, LINE 11B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990, PAGE 6, PART VI, LINE 19 |
| IRS990/SchoolOperatingInd | 0 | false |
| IRS990/SignificantChangeInd | 0 | false |
| IRS990/SignificantNewProgramSrvcInd | 0 | false |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 0 | CA |
| IRS990/SubjectToExcsTaxNetInvstIncInd | 0 | false |
| IRS990/SubjectToProxyTaxInd | 0 | false |
| IRS990/SubjToTaxRmnrtnExPrchtPymtInd | 0 | false |
| IRS990/TaxablePartyNotificationInd | 0 | false |
| IRS990/TaxExemptBondsInd | 0 | false |
| IRS990/TerminateOperationsInd | 0 | false |
| IRS990/TotalAssetsBOYAmt | 0 | 12334 |
| IRS990/TotalAssetsEOYAmt | 0 | 20254 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 12334 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 20254 |
| IRS990/TotalCompGreaterThan150KInd | 0 | false |
| IRS990/TotalContributionsAmt | 0 | 143170 |
| IRS990/TotalEmployeeCnt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 135258 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 135258 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 0 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 12334 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 20254 |
| IRS990/TotalProgramServiceExpensesAmt | 0 | 135258 |
| IRS990/TotalRevenueGrp/ExclusionAmt | 0 | 8 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 143178 |
| IRS990/TotalVolunteersCnt | 0 | 11 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 12334 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 20254 |
| IRS990/TypeOfOrganizationCorpInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | false |
| IRS990/UponRequestInd | 0 | X |
| IRS990/USAddress/AddressLine1Txt | 0 | 321 LINDA VISTA AVE |
| IRS990/USAddress/CityNm | 0 | MILL VALLEY |
| IRS990/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/USAddress/ZIPCd | 0 | 94941 |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 4 |
| IRS990/VotingMembersIndependentCnt | 0 | 4 |
| IRS990/WebsiteAddressTxt | 0 | WWW.MVCAN.ORG |
| IRS990/WhistleblowerPolicyInd | 0 | false |
| ReturnHeader/BuildTS | 0 | 2022-09-23 18:48:47Z |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | EILEEN FISHER |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | TREASURER |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 4157307360 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2022-12-06 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | MILL VALLEY COMMUNITY ACTION NETWOR |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | MILL |
| ReturnHeader/Filer/EIN | 0 | 821387578 |
| ReturnHeader/Filer/PhoneNum | 0 | 4157307360 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 321 VISTA LINDA DRIVE |
| ReturnHeader/Filer/USAddress/CityNm | 0 | MILL VALLEY |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | CA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 94941 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 942697002 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | JANNISSE & HULL CPAS |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 7599 REDWOOD BLVD SUITE 210 |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | NOVATO |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | CA |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 94945 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 4158985300 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2022-12-06 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | TAMARA S HULL |
| ReturnHeader/ReturnTs | 0 | 2022-12-22T12:55:16-05:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990 |
| ReturnHeader/SigningOfficerGrp/PersonFullName/PersonFirstNm | 0 | EILEEN |
| ReturnHeader/SigningOfficerGrp/PersonFullName/PersonLastNm | 0 | FISHER |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2021-01-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2021-12-31 |
| ReturnHeader/TaxYr | 0 | 2021 |