| r0.c0 | RuleNode_114/Group [member] | | | | ifrs-full:ConsolidatedMember | N/A |
| r0.c1 | RuleNode_114/Company [member] | | | | ifrs-full:SeparateMember | N/A |
| r1.c0 | Inventories [abstract]/Group [member] | ssmt-mfrs:InventoriesAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r1.c1 | Inventories [abstract]/Company [member] | ssmt-mfrs:InventoriesAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r2.c0 | Raw materials/Group [member] | ifrs-full:RawMaterials | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r2.c1 | Raw materials/Company [member] | ifrs-full:RawMaterials | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r3.c0 | Work in progress/Group [member] | ifrs-full:WorkInProgress | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r3.c1 | Work in progress/Company [member] | ifrs-full:WorkInProgress | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r4.c0 | Finished goods/Group [member] | ifrs-full:FinishedGoods | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r4.c1 | Finished goods/Company [member] | ifrs-full:FinishedGoods | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r5.c0 | Spare parts/Group [member] | ifrs-full:SpareParts | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r5.c1 | Spare parts/Company [member] | ifrs-full:SpareParts | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r6.c0 | Other inventories/Group [member] | ifrs-full:OtherInventories | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r6.c1 | Other inventories/Company [member] | ifrs-full:OtherInventories | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r7.c0 | Total inventories/Group [member] | ifrs-full:InventoriesTotal | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r7.c1 | Total inventories/Company [member] | ifrs-full:InventoriesTotal | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |