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| IRS990EZ/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1058 W 33RD ST |
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| IRS990EZ/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | IN |
| IRS990EZ/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 46208 |
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| IRS990EZ/Form990TotalAssetsGrp/EOYAmt | 0 | 149885 |
| IRS990EZ/GrossReceiptsAmt | 0 | 158600 |
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| IRS990EZ/InfoInScheduleOPartIInd | 0 | X |
| IRS990EZ/InvestmentIncomeAmt | 0 | 9264 |
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| IRS990EZ/MadeLoansToFromOfficersInd | 0 | false |
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| IRS990EZ/NetAssetsOrFundBalancesEOYAmt | 0 | 136994 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/BOYAmt | 0 | 167754 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/EOYAmt | 0 | 136994 |
| IRS990EZ/OccupancyRentUtltsAndMaintAmt | 0 | 1517 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 0 | 40.00 |
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| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 3 | 3.00 |
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| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 6 | 2.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 7 | 2.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 8 | 1.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 9 | 5.00 |
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| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 7 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 8 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 9 | 0 |
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| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 3 | 0 |
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| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 5 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 6 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 7 | 0 |
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| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 5 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 6 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 7 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 8 | 0 |
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| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 2 | SHEENA SOLOMON |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 3 | DEAMON HARGES |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 4 | JULIE BLACK |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 5 | PAULA ELLIS |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 6 | NATALLIE KEISER |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 7 | KALIAH LIGON |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 8 | GORDON MARTIN |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 9 | JAMES LYTLE |
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| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 5 | BOARD MEMBER |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 6 | BOARD SECRETARY |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 7 | CHAIR INTERN |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 8 | BOARD MEMBER |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 9 | FORMER FINANCIAL OFFICER |
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| IRS990EZ/OtherRevenueTotalAmt | 0 | 333 |
| IRS990EZ/PartVIHghstPdCntrctProfSrvcTxt | 0 | NONE |
| IRS990EZ/PartVIOfCompOfHghstPdEmplTxt | 0 | NONE |
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| IRS990EZ/PrimaryExemptPurposeTxt | 0 | EDUCATE AND ASSIST OTHER NON-PROFIT ORGS |
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| IRS990EZ/ProgramServiceRevenueAmt | 0 | 41034 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 0 | CONDUCT BI-ANNUAL SURVEY AND INTERVIEW FUNDING ORGANIZATIONS TO REPORT ON THE STATE OF GRASSROOTS GRANTMAKING PRACTICES MAINTAIN WEBSITE REPOSITORY OF SURVEY-RELATED INFORMATION |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 1 | ORGANIZE AND HOST CONFERENCES AND NETWORKING EVENTS FOR CONSTITUENTS |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 2 | SPONSORED INDIE PHILANTHROPY INITIATIVE AN ORGANIZATION DEDICATED TO ALTERNATIVE FUNDING SOURCES IN THE FIELD OF PHILANTHROPY |
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| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 1 | 35674 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 2 | 45266 |
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| IRS990EZ/SumOfTotalLiabilitiesGrp/EOYAmt | 0 | 12891 |
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| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 90100 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 174228 |
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| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 3531 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 11357 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 234 |
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| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.94720 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.96040 |
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| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 67922 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 58775 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 90100 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 174228 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 498994 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 526812 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | GRASSROOTS GRANTMAKERS IS A NETWORK OF PLACE-BASED FUNDERS IN THE US AND CANADA SUPPORTING ACTIVE CITIZENSHIP TO BUILD SOCIAL, CAPITAL, AND CIVIC CAPACITY AT THE BLOCK LEVEL IN THEIR COMMUNTITIES. OUR ORGANIZATION SERVES AS A LOCUS OF LEARNING ABOUT GRASSROOTS GRANTMAKING AND AS AN ADVOCATE FOR THE PRACTICE OF GRASSROOTS GRANTMAKING AS AN ESSENTIAL COMPONENT OF EFFECTIVE PLACE-BASED PHILANTHROPY.WE CONDUCT A BI-ANNUAL SURVEY TO PRODUCE A REPORT ON THE STATE OF THE FIELD OF GRASSROOTS GRANTMAKING PRACTICES. WE INTERVIEW PEOPLE WHO ARE ASSOCIATED WITH FUNDING ORGANIZATIONS TO LEARN MORE ABOUT THEIR WORK, TO IDENTIFY THEIR INNOVATIVE PRACTICES, AND TO DETERMINE WHAT CHALLENGES THEY EXPERIENCE. WE SHARE THIS INFORMATION WITH OUR MEMBERS ON OUR WEBSITE. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | DESCRIPTION AMOUNTREFUND OF PRIOR YRS EXPENSE 84CREDIT CARD REBATES 249 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | DESCRIPTION AMOUNTDEPRECIATION FROM 4562 1,068BOARD OF DIRECTORS MEETINGS 6,392EVENT EXPENSES 35,673BANK FEES 1,800PROFESSIONAL DEVELOPMENT 7,100REGISTRATIONS & SPONSORSHIPS 309OFFICE EXPENSES 2,038TRAVEL AND MEETINGS 5,803INSURANCE 1,449MISC 800 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | CATEGORY BEGINNING OF YEAR END OF YEARACCOUNTS RECEIVABLE 0 6,500COMPUTER EQUIPMENT 2,670 1,602 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | CATEGORY BEGINNING OF YEAR END OF YEARACCOUNTS PAYABLE 470 10,335PAYROLL TAXES PAYABLE 2,683 2,556 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | General explanation attachment |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Description of other revenue Part I line 8 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | Description of other expenses Part I line 16 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | Description of other assets Part II line 24 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | Description of total liabilities Part II line 26 |
| ReturnHeader/BuildTS | 0 | 2018-06-14 16:35:46Z |
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| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | DEAMON HARGES |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | BOARD CHAIR |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 3177216502 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2018-05-14 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | GRASSROOTS GRANTMAKERS |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | GRAS |
| ReturnHeader/Filer/EIN | 0 | 271380459 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 1058 W 33RD ST |
| ReturnHeader/Filer/USAddress/CityNm | 0 | INDIANAPOLIS |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | IN |
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| ReturnHeader/FilingSecurityInformation/FilingLicenseTypeCd | 0 | P |
| ReturnHeader/FilingSecurityInformation/IPAddress/IPv4AddressTxt | 0 | 184.96.109.187 |
| ReturnHeader/FilingSecurityInformation/IPDt | 0 | 2018-05-15 |
| ReturnHeader/FilingSecurityInformation/IPTm | 0 | 11:19:12 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 431998065 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | Sangre Solutions |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 302 Main Street |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | Westcliffe |
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| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2018-05-15 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | Veronica Burgdorff |
| ReturnHeader/ReturnTs | 0 | 2018-05-15T11:17:55-04:00 |
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| ReturnHeader/TaxPeriodBeginDt | 0 | 2017-01-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2017-12-31 |
| ReturnHeader/TaxYr | 0 | 2017 |