| r0.c0 | RuleNode_2/Group [member] | | | | ifrs-full:ConsolidatedMember | N/A |
| r0.c1 | RuleNode_2/Company [member] | | | | ifrs-full:SeparateMember | N/A |
| r1.c0 | Profit (loss) [abstract]/Group [member] | ssmt:StatementOfProfitOrLossAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r1.c1 | Profit (loss) [abstract]/Company [member] | ssmt:StatementOfProfitOrLossAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r2.c0 | Continuing operations [abstract]/Group [member] | ssmt-mfrs:ContinuingOperationsAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r2.c1 | Continuing operations [abstract]/Company [member] | ssmt-mfrs:ContinuingOperationsAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r3.c0 | Revenue/Group [member] | ifrs-full:Revenue | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r3.c1 | Revenue/Company [member] | ifrs-full:Revenue | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r4.c0 | Other income/Group [member] | ifrs-full:OtherIncome | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r4.c1 | Other income/Company [member] | ifrs-full:OtherIncome | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r5.c0 | (Increase) decrease in inventories of finished goods and work in progress/Group [member] | ifrs-full:ChangesInInventoriesOfFinishedGoodsAndWorkInProgress | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r5.c1 | (Increase) decrease in inventories of finished goods and work in progress/Company [member] | ifrs-full:ChangesInInventoriesOfFinishedGoodsAndWorkInProgress | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r6.c0 | Other work performed by company and capitalised/Group [member] | ifrs-full:OtherWorkPerformedByEntityAndCapitalised | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r6.c1 | Other work performed by company and capitalised/Company [member] | ifrs-full:OtherWorkPerformedByEntityAndCapitalised | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r7.c0 | Raw materials and consumables used/Group [member] | ifrs-full:RawMaterialsAndConsumablesUsed | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r7.c1 | Raw materials and consumables used/Company [member] | ifrs-full:RawMaterialsAndConsumablesUsed | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r8.c0 | Depreciation, impairment and amortisation/Group [member] | ifrs-full:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r8.c1 | Depreciation, impairment and amortisation/Company [member] | ifrs-full:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r9.c0 | Employee benefits expense/Group [member] | ssmt-mfrs:EmployeeBenefitsExpenseByNature | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r9.c1 | Employee benefits expense/Company [member] | ssmt-mfrs:EmployeeBenefitsExpenseByNature | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r10.c0 | Other expenses/Group [member] | ifrs-full:OtherExpenseByNature | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r10.c1 | Other expenses/Company [member] | ifrs-full:OtherExpenseByNature | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r11.c0 | Profit (loss) from operating activities/Group [member] | ifrs-full:ProfitLossFromOperatingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r11.c1 | Profit (loss) from operating activities/Company [member] | ifrs-full:ProfitLossFromOperatingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r12.c0 | Finance income/Group [member] | ifrs-full:FinanceIncome | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r12.c1 | Finance income/Company [member] | ifrs-full:FinanceIncome | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r13.c0 | Finance costs/Group [member] | ifrs-full:FinanceCosts | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r13.c1 | Finance costs/Company [member] | ifrs-full:FinanceCosts | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r14.c0 | Share of profit (loss) of associates and joint ventures accounted for using equity method/Group [member] | ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r14.c1 | Share of profit (loss) of associates and joint ventures accounted for using equity method/Company [member] | ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r15.c0 | Profit (loss) before tax/Group [member] | ifrs-full:ProfitLossBeforeTax | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r15.c1 | Profit (loss) before tax/Company [member] | ifrs-full:ProfitLossBeforeTax | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r16.c0 | Tax expense/Group [member] | ifrs-full:IncomeTaxExpenseContinuingOperations | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r16.c1 | Tax expense/Company [member] | ifrs-full:IncomeTaxExpenseContinuingOperations | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r17.c0 | Contribution of zakat/Group [member] | ssmt-mfrs:ContributionOfZakat | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r17.c1 | Contribution of zakat/Company [member] | ssmt-mfrs:ContributionOfZakat | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r18.c0 | Profit (loss) from continuing operations/Group [member] | ifrs-full:ProfitLossFromContinuingOperations | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r18.c1 | Profit (loss) from continuing operations/Company [member] | ifrs-full:ProfitLossFromContinuingOperations | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r19.c0 | Discontinued operation [abstract]/Group [member] | ssmt-mfrs:DiscontinuedOperationsAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r19.c1 | Discontinued operation [abstract]/Company [member] | ssmt-mfrs:DiscontinuedOperationsAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r20.c0 | Profit (loss) from discontinued operations, net of tax/Group [member] | ifrs-full:ProfitLossFromDiscontinuedOperations | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r20.c1 | Profit (loss) from discontinued operations, net of tax/Company [member] | ifrs-full:ProfitLossFromDiscontinuedOperations | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r21.c0 | Profit (loss)/Group [member] | ifrs-full:ProfitLoss | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r21.c1 | Profit (loss)/Company [member] | ifrs-full:ProfitLoss | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r22.c0 | Profit (loss), attributable to [abstract]/Group [member] | ifrs-full:ProfitLossAttributableToAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r22.c1 | Profit (loss), attributable to [abstract]/Company [member] | ifrs-full:ProfitLossAttributableToAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r23.c0 | Profit (loss), attributable to owners of parent/Group [member] | ifrs-full:ProfitLossAttributableToOwnersOfParent | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r23.c1 | Profit (loss), attributable to owners of parent/Company [member] | ifrs-full:ProfitLossAttributableToOwnersOfParent | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r24.c0 | Profit (loss), attributable to equity other components/Group [member] | ssmt-mfrs:ProfitLossAttributableToOtherComponentsOfEquity | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r24.c1 | Profit (loss), attributable to equity other components/Company [member] | ssmt-mfrs:ProfitLossAttributableToOtherComponentsOfEquity | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r25.c0 | Profit (loss), attributable to non-controlling interests/Group [member] | ifrs-full:ProfitLossAttributableToNoncontrollingInterests | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r25.c1 | Profit (loss), attributable to non-controlling interests/Company [member] | ifrs-full:ProfitLossAttributableToNoncontrollingInterests | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r26.c0 | Profit (loss)/Group [member] | ifrs-full:ProfitLoss | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r26.c1 | Profit (loss)/Company [member] | ifrs-full:ProfitLoss | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r27.c0 | Earnings (Loss) per share [abstract]/Group [member] | ifrs-full:EarningsPerShareAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r27.c1 | Earnings (Loss) per share [abstract]/Company [member] | ifrs-full:EarningsPerShareAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r28.c0 | Basic earnings per share [abstract]/Group [member] | ifrs-full:BasicEarningsPerShareAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r28.c1 | Basic earnings per share [abstract]/Company [member] | ifrs-full:BasicEarningsPerShareAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r29.c0 | Basic earnings (loss) per share from continuing operations/Group [member] | ifrs-full:BasicEarningsLossPerShareFromContinuingOperations | num:perShareItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR/xbrli:shares |
| r29.c1 | Basic earnings (loss) per share from continuing operations/Company [member] | ifrs-full:BasicEarningsLossPerShareFromContinuingOperations | num:perShareItemType | duration | ifrs-full:SeparateMember | iso4217:MYR/xbrli:shares |
| r30.c0 | Basic earnings (loss) per share from discontinued operations/Group [member] | ifrs-full:BasicEarningsLossPerShareFromDiscontinuedOperations | num:perShareItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR/xbrli:shares |
| r30.c1 | Basic earnings (loss) per share from discontinued operations/Company [member] | ifrs-full:BasicEarningsLossPerShareFromDiscontinuedOperations | num:perShareItemType | duration | ifrs-full:SeparateMember | iso4217:MYR/xbrli:shares |
| r31.c0 | Total basic earnings (loss) per share/Group [member] | ifrs-full:BasicEarningsLossPerShare | num:perShareItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR/xbrli:shares |
| r31.c1 | Total basic earnings (loss) per share/Company [member] | ifrs-full:BasicEarningsLossPerShare | num:perShareItemType | duration | ifrs-full:SeparateMember | iso4217:MYR/xbrli:shares |
| r32.c0 | Diluted earnings per share [abstract]/Group [member] | ifrs-full:DilutedEarningsPerShareAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r32.c1 | Diluted earnings per share [abstract]/Company [member] | ifrs-full:DilutedEarningsPerShareAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r33.c0 | Diluted earnings (loss) per share from continuing operations/Group [member] | ifrs-full:DilutedEarningsLossPerShareFromContinuingOperations | num:perShareItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR/xbrli:shares |
| r33.c1 | Diluted earnings (loss) per share from continuing operations/Company [member] | ifrs-full:DilutedEarningsLossPerShareFromContinuingOperations | num:perShareItemType | duration | ifrs-full:SeparateMember | iso4217:MYR/xbrli:shares |
| r34.c0 | Diluted earnings (loss) per share from discontinued operations/Group [member] | ifrs-full:DilutedEarningsLossPerShareFromDiscontinuedOperations | num:perShareItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR/xbrli:shares |
| r34.c1 | Diluted earnings (loss) per share from discontinued operations/Company [member] | ifrs-full:DilutedEarningsLossPerShareFromDiscontinuedOperations | num:perShareItemType | duration | ifrs-full:SeparateMember | iso4217:MYR/xbrli:shares |
| r35.c0 | Total diluted earnings (loss) per share/Group [member] | ifrs-full:DilutedEarningsLossPerShare | num:perShareItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR/xbrli:shares |
| r35.c1 | Total diluted earnings (loss) per share/Company [member] | ifrs-full:DilutedEarningsLossPerShare | num:perShareItemType | duration | ifrs-full:SeparateMember | iso4217:MYR/xbrli:shares |