| 当期純利益又は当期純損失(△) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 当期純利益又は当期純損失(△)、経営指標等 | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 当期純利益 | ja | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| 当期純損失 | ja | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |
| Profit (loss) | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Profit (loss), Key financial data | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Profit | en | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| Loss | en | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |