| 発行済株式総数、資本金等の推移 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 発行済株式総数、資本金等の推移 [テキストブロック] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Changes in number of issued shares, share capital and legal capital surplus | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Changes in number of issued shares, share capital and legal capital surplus [text block] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |