| 中間連結財務諸表作成のための基本となる重要な事項 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 中間連結財務諸表作成のための基本となる重要な事項 [表] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Notes - Significant accounting policies for preparation of semi-annual consolidated financial statements | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Notes - Significant accounting policies for preparation of semi-annual consolidated financial statements [table] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |