| Name | ComponentsOfBudgetAndActualAmountsAxis |
|---|---|
| Namespace | http://xbrl.cipc.co.za/taxonomy/grap |
| Prefix | grap |
| Data type | xbrli:stringItemType |
| Period type | duration |
| Substitution Group | xbrldt:dimensionItem |
| Balance | None |
| Nillable | True |
| Abstract | True |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Components of budget and actual amounts [axis] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Name | Relation Type | Role | |
|---|---|---|---|
grap:ActualAmountsOnComparableBasisMember | dimension-default | http://xbrl.cipc.co.za/taxonomy/role/dimensions/999.999/DimensionalQualificationForLineItems | |
grap:ActualAmountsOnComparableBasisMember | dimension-domain | http://xbrl.cipc.co.za/taxonomy/role/dimensions/999.999/DimensionalQualificationForLineItems |
| Name | Relation Type | Role | |
|---|---|---|---|
cipc-ca:DimensionalQualificationForLineItemsTable | hypercube-dimension | http://xbrl.cipc.co.za/taxonomy/role/dimensions/999.999/DimensionalQualificationForLineItems |