Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000013239-21-000009-index-headers.html | 2021-05-12 07:07:39 | |
| 0000013239-21-000009-index.html | 2021-05-12 07:07:39 | |
| 0000013239-21-000009.txt | 2021-05-12 07:07:39 | |
 0000013239-21-000009-xbrl.zip | 77805 | 2021-05-12 07:07:39 |
| exhibit991earningsrelease3.htm | 432602 | 2021-05-12 07:07:39 |
| FilingSummary.xml | 1774 | 2021-05-12 07:07:39 |
| Financial_Report.xlsx | 5543 | 2021-05-12 07:07:39 |
| hsc-20210512.htm | 29849 | 2021-05-12 07:07:39 |
| hsc-20210512.xsd | 2412 | 2021-05-12 07:07:39 |
| hsc-20210512_cal.xml | 705 | 2021-05-12 07:07:39 |
| hsc-20210512_def.xml | 13206 | 2021-05-12 07:07:39 |
 hsc-20210512_g1.jpg | 56122 | 2021-05-12 07:07:39 |
| hsc-20210512_htm.xml | 9667 | 2021-05-12 07:07:39 |
| hsc-20210512_lab.xml | 25225 | 2021-05-12 07:07:39 |
| hsc-20210512_pre.xml | 13575 | 2021-05-12 07:07:39 |
 logo2002a031.jpg | 56122 | 2021-05-12 07:07:39 |
| MetaLinks.json | 17856 | 2021-05-12 07:07:39 |
| R1.htm | 34029 | 2021-05-12 07:07:39 |
| report.css | 2767 | 2021-05-12 07:07:39 |
| Show.js | 1085 | 2021-05-12 07:07:39 |