| Art 19 para 2 item 9 | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Changes in representative directors | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Changes in representative directors [text block] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 第19条第2項第9号 | ja | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| 代表取締役の異動 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 代表取締役の異動 [テキストブロック] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |