| 重要な後発事象(該当なし) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 重要な後発事象、四半期連結財務諸表(該当なし) [テキストブロック] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Notes - Significant events after reporting period (N/A) | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Notes - Significant events after reporting period, Quarterly consolidated financial statements (N/A) [text block] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |