| nach IDW PS 400 | de | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Hinweise zur Bestandsgefährdung, Prüfungsvermerk | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Hinweise zur Bestandsgefährdung | de | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Reference to going concern risk | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Auditors' report, Reference to going concern risk | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| In accordance with IDW AuS 400 | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |