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| 0000047518-19-000011-index.html | 2019-01-25 12:37:50 | |
| 0000047518-19-000011.txt | 2019-01-25 12:37:50 | |
 0000047518-19-000011-xbrl.zip | 237332 | 2019-01-25 12:37:50 |
| a2019q110q.htm | 1379959 | 2019-01-25 12:37:50 |
| exhibit311q12019.htm | 14242 | 2019-01-25 12:37:50 |
| exhibit312q12019.htm | 14207 | 2019-01-25 12:37:50 |
| exhibit321q12019.htm | 7099 | 2019-01-25 12:37:50 |
| exhibit322q12019.htm | 7377 | 2019-01-25 12:37:50 |
| FilingSummary.xml | 34510 | 2019-01-25 12:37:50 |
| Financial_Report.xlsx | 81218 | 2019-01-25 12:37:50 |
 hillromimage.jpg | 11972 | 2019-01-25 12:37:50 |
| hrc-20181231.xml | 1625840 | 2019-01-25 12:37:50 |
| hrc-20181231.xsd | 43695 | 2019-01-25 12:37:50 |
| hrc-20181231_cal.xml | 87528 | 2019-01-25 12:37:50 |
| hrc-20181231_def.xml | 345163 | 2019-01-25 12:37:50 |
| hrc-20181231_lab.xml | 720529 | 2019-01-25 12:37:50 |
| hrc-20181231_pre.xml | 486291 | 2019-01-25 12:37:50 |
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| report.css | 2767 | 2019-01-25 12:37:50 |
| Show.js | 1085 | 2019-01-25 12:37:50 |