| Name | nt.bsInfo.infoOnOwnShares |
|---|---|
| Namespace | http://www.xbrl.de/taxonomies/de-gaap-ci-2020-04-01 |
| Prefix | de-gaap-ci |
| Data type | xbrli:stringItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Angaben über Bestand, Erwerb, Inpfandnahme und Veräußerung von eigenen Aktien | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Ab BilRUG für Kleinstkapitalgesellschaften ggf. Folgeposition füllen | de | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Disclosure of amount of own shares acquired, taken as security and sold | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| Name | AktG | http://www.xbrl.org/2003/role/reference |
| Paragraph | 160 | http://www.xbrl.org/2003/role/reference |
| Subparagraph | 1 | http://www.xbrl.org/2003/role/reference |
| Number | 2 | http://www.xbrl.org/2003/role/reference |
| ValidThrough | 2016-12-30 | http://www.xbrl.org/2003/role/reference |
| legalFormKSt | true | http://www.xbrl.org/2003/role/mandatoryDisclosureRef |
| typeOperatingResult | neutral | http://www.xbrl.org/2003/role/mandatoryDisclosureRef |
| Name | Relation Type | Role | |
|---|---|---|---|
de-gaap-ci:nt.bsInfo | parent-child | http://www.xbrl.de/taxonomies/de-gaap-ci/role/notes |