| Amount of stockholders' equity attributable to the parent entity that is computed in accordance and used for compliance with regulatory requirements. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Stockholders' Equity Attributable to Parent, Qualified for Net Capital (Deprecated 2019-01-31) | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Stockholders' Equity Attributable to Parent, Qualified for Net Capital, Total (Deprecated 2019-01-31) | en-US | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |