3.21.4 html 157 310 1 false 60 0 false 5 false false R1.htm 000001 - Document - Cover Sheet http://greenhygienicsholdings.com/role/Cover Cover Cover 1 false false R2.htm 000002 - Statement - Condensed Consolidated Balance Sheets Sheet http://greenhygienicsholdings.com/role/CondensedConsolidatedBalanceSheets Condensed Consolidated Balance Sheets Statements 2 false false R3.htm 000003 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) Sheet http://greenhygienicsholdings.com/role/CondensedConsolidatedBalanceSheetsParenthetical Condensed Consolidated Balance Sheets (Parenthetical) Statements 3 false false R4.htm 000004 - Statement - Condensed Consolidated Statements of Operations (unaudited) Sheet http://greenhygienicsholdings.com/role/CondensedConsolidatedStatementsOfOperationsUnaudited Condensed Consolidated Statements of Operations (unaudited) Statements 4 false false R5.htm 000005 - Statement - Condensed Consolidated Statements of Stockholders' Equity (Deficit) (unaudited) Sheet http://greenhygienicsholdings.com/role/CondensedConsolidatedStatementsOfStockholdersEquityDeficitUnaudited Condensed Consolidated Statements of Stockholders' Equity (Deficit) (unaudited) Statements 5 false false R6.htm 000006 - Statement - Condensed Consolidated Statements of Cash Flows (unaudited) Sheet http://greenhygienicsholdings.com/role/CondensedConsolidatedStatementsOfCashFlowsUnaudited Condensed Consolidated Statements of Cash Flows (unaudited) Statements 6 false false R7.htm 000007 - Disclosure - Nature of Operations and Continuance of Business Sheet http://greenhygienicsholdings.com/role/NatureOfOperationsAndContinuanceOfBusiness Nature of Operations and Continuance of Business Notes 7 false false R8.htm 000008 - Disclosure - Significant Accounting Policies Sheet http://greenhygienicsholdings.com/role/SignificantAccountingPolicies Significant Accounting Policies Notes 8 false false R9.htm 000009 - Disclosure - Prepaid expenses Sheet http://greenhygienicsholdings.com/role/PrepaidExpenses Prepaid expenses Notes 9 false false R10.htm 000010 - Disclosure - Fixed Assets Sheet http://greenhygienicsholdings.com/role/FixedAssets Fixed Assets Notes 10 false false R11.htm 000011 - Disclosure - Loans Payable Sheet http://greenhygienicsholdings.com/role/LoansPayable Loans Payable Notes 11 false false R12.htm 000012 - Disclosure - Convertible Note Payable Sheet http://greenhygienicsholdings.com/role/ConvertibleNotePayable Convertible Note Payable Notes 12 false false R13.htm 000013 - Disclosure - Related Party Transactions Sheet http://greenhygienicsholdings.com/role/RelatedPartyTransactions Related Party Transactions Notes 13 false false R14.htm 000014 - Disclosure - Share Issuances Sheet http://greenhygienicsholdings.com/role/ShareIssuances Share Issuances Notes 14 false false R15.htm 000015 - Disclosure - Commitments Contingencies Sheet http://greenhygienicsholdings.com/role/CommitmentsContingencies Commitments Contingencies Notes 15 false false R16.htm 000016 - Disclosure - Sales concentration Sheet http://greenhygienicsholdings.com/role/SalesConcentration Sales concentration Notes 16 false false R17.htm 000017 - Disclosure - Gain on Forgiveness of payable Sheet http://greenhygienicsholdings.com/role/GainOnForgivenessOfPayable Gain on Forgiveness of payable Notes 17 false false R18.htm 000018 - Disclosure - Subsequent Events Sheet http://greenhygienicsholdings.com/role/SubsequentEvents Subsequent Events Notes 18 false false R19.htm 000019 - Disclosure - Significant Accounting Policies (Policies) Sheet http://greenhygienicsholdings.com/role/SignificantAccountingPoliciesPolicies Significant Accounting Policies (Policies) Policies http://greenhygienicsholdings.com/role/SignificantAccountingPolicies 19 false false R20.htm 000020 - Disclosure - Fixed assets (Tables) Sheet http://greenhygienicsholdings.com/role/FixedAssetsTables Fixed assets (Tables) Tables 20 false false R21.htm 000021 - Disclosure - Loans Payable (Tables) Sheet http://greenhygienicsholdings.com/role/LoansPayableTables Loans Payable (Tables) Tables http://greenhygienicsholdings.com/role/LoansPayable 21 false false R22.htm 000022 - Disclosure - Related Party Transactions (Tables) Sheet http://greenhygienicsholdings.com/role/RelatedPartyTransactionsTables Related Party Transactions (Tables) Tables http://greenhygienicsholdings.com/role/RelatedPartyTransactions 22 false false R23.htm 000023 - Disclosure - CommitmentsContingencies (Tables) Sheet http://greenhygienicsholdings.com/role/CommitmentscontingenciesTables CommitmentsContingencies (Tables) Tables 23 false false R24.htm 000024 - Disclosure - Nature of Operations and Continuance of Business (Details Narrative) Sheet http://greenhygienicsholdings.com/role/NatureOfOperationsAndContinuanceOfBusinessDetailsNarrative Nature of Operations and Continuance of Business (Details Narrative) Details http://greenhygienicsholdings.com/role/NatureOfOperationsAndContinuanceOfBusiness 24 false false R25.htm 000025 - Disclosure - Significant Accounting Policies (Details Narrative) Sheet http://greenhygienicsholdings.com/role/SignificantAccountingPoliciesDetailsNarrative Significant Accounting Policies (Details Narrative) Details http://greenhygienicsholdings.com/role/SignificantAccountingPoliciesPolicies 25 false false R26.htm 000026 - Disclosure - Prepaid expenses (Details Narrative) Sheet http://greenhygienicsholdings.com/role/PrepaidExpensesDetailsNarrative Prepaid expenses (Details Narrative) Details http://greenhygienicsholdings.com/role/PrepaidExpenses 26 false false R27.htm 000027 - Disclosure - Fixed Assets (Details) Sheet http://greenhygienicsholdings.com/role/FixedAssetsDetails Fixed Assets (Details) Details http://greenhygienicsholdings.com/role/FixedAssets 27 false false R28.htm 000028 - Disclosure - Fixed Assets (Details Narrative) Sheet http://greenhygienicsholdings.com/role/FixedAssetsDetailsNarrative Fixed Assets (Details Narrative) Details http://greenhygienicsholdings.com/role/FixedAssets 28 false false R29.htm 000029 - Disclosure - Loans Payable (Details) Sheet http://greenhygienicsholdings.com/role/LoansPayableDetails Loans Payable (Details) Details http://greenhygienicsholdings.com/role/LoansPayableTables 29 false false R30.htm 000030 - Disclosure - Loans Payable (Details Narrative) Sheet http://greenhygienicsholdings.com/role/LoansPayableDetailsNarrative Loans Payable (Details Narrative) Details http://greenhygienicsholdings.com/role/LoansPayableTables 30 false false R31.htm 000031 - Disclosure - Convertible Note Payable (Details Narrative) Sheet http://greenhygienicsholdings.com/role/ConvertibleNotePayableDetailsNarrative Convertible Note Payable (Details Narrative) Details http://greenhygienicsholdings.com/role/ConvertibleNotePayable 31 false false R32.htm 000032 - Disclosure - Related Party Transactions (Details) Sheet http://greenhygienicsholdings.com/role/RelatedPartyTransactionsDetails Related Party Transactions (Details) Details http://greenhygienicsholdings.com/role/RelatedPartyTransactionsTables 32 false false R33.htm 000033 - Disclosure - Related Party Transactions (Details 1) Sheet http://greenhygienicsholdings.com/role/RelatedPartyTransactionsDetails1 Related Party Transactions (Details 1) Details http://greenhygienicsholdings.com/role/RelatedPartyTransactionsTables 33 false false R34.htm 000034 - Disclosure - Related Party Transactions (Details 2) Sheet http://greenhygienicsholdings.com/role/RelatedPartyTransactionsDetails2 Related Party Transactions (Details 2) Details http://greenhygienicsholdings.com/role/RelatedPartyTransactionsTables 34 false false R35.htm 000035 - Disclosure - Related Party Transactions (Details Narrative) Sheet http://greenhygienicsholdings.com/role/RelatedPartyTransactionsDetailsNarrative Related Party Transactions (Details Narrative) Details http://greenhygienicsholdings.com/role/RelatedPartyTransactionsTables 35 false false R36.htm 000036 - Disclosure - Share Issuances (Details Narrative) Sheet http://greenhygienicsholdings.com/role/ShareIssuancesDetailsNarrative Share Issuances (Details Narrative) Details http://greenhygienicsholdings.com/role/ShareIssuances 36 false false R37.htm 000037 - Disclosure - Commitments Contigencies (Details) Sheet http://greenhygienicsholdings.com/role/CommitmentsContigenciesDetails Commitments Contigencies (Details) Details 37 false false R38.htm 000038 - Disclosure - Commitments Contigencies (Details Narrative) Sheet http://greenhygienicsholdings.com/role/CommitmentsContigenciesDetailsNarrative Commitments Contigencies (Details Narrative) Details 38 false false R39.htm 000039 - Disclosure - Sales Concentration (Details Narrative) Sheet http://greenhygienicsholdings.com/role/SalesConcentrationDetailsNarrative Sales Concentration (Details Narrative) Details 39 false false R40.htm 000040 - Disclosure - Gain on Forgiveness of payable (Details Narrative) Sheet http://greenhygienicsholdings.com/role/GainOnForgivenessOfPayableDetailsNarrative Gain on Forgiveness of payable (Details Narrative) Details http://greenhygienicsholdings.com/role/GainOnForgivenessOfPayable 40 false false All Reports Book All Reports gryn_10q.htm gryn-20211031.xsd gryn-20211031_cal.xml gryn-20211031_def.xml gryn-20211031_lab.xml gryn-20211031_pre.xml gryn_ex311.htm gryn_ex312.htm gryn_ex321.htm gryn_ex322.htm http://fasb.org/srt/2020-01-31 http://xbrl.sec.gov/dei/2020-01-31 http://fasb.org/us-gaap/2020-01-31 true true