| 継続企業の前提に関する事項 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 継続企業の前提に関する事項、中間連結財務諸表 [テキストブロック] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Notes - Uncertainties of entity's ability to continue as going concern | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Notes - Uncertainties of entity's ability to continue as going concern, Semi-annual consolidated financial statements [text block] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |