Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000013239-21-000003-index-headers.html | 2021-03-10 07:12:49 | |
| 0000013239-21-000003-index.html | 2021-03-10 07:12:49 | |
| 0000013239-21-000003.txt | 2021-03-10 07:12:49 | |
 0000013239-21-000003-xbrl.zip | 86839 | 2021-03-10 07:12:49 |
| exhibit991earningsrelease1.htm | 667427 | 2021-03-10 07:12:49 |
| FilingSummary.xml | 1774 | 2021-03-10 07:12:49 |
| Financial_Report.xlsx | 5322 | 2021-03-10 07:12:49 |
| hsc-20210310.htm | 29862 | 2021-03-10 07:12:49 |
| hsc-20210310.xsd | 2412 | 2021-03-10 07:12:49 |
| hsc-20210310_cal.xml | 705 | 2021-03-10 07:12:49 |
| hsc-20210310_def.xml | 13206 | 2021-03-10 07:12:49 |
 hsc-20210310_g1.jpg | 56122 | 2021-03-10 07:12:49 |
| hsc-20210310_htm.xml | 9667 | 2021-03-10 07:12:49 |
| hsc-20210310_lab.xml | 25225 | 2021-03-10 07:12:49 |
| hsc-20210310_pre.xml | 13575 | 2021-03-10 07:12:49 |
 logo2002a031a.jpg | 56122 | 2021-03-10 07:12:49 |
| MetaLinks.json | 17856 | 2021-03-10 07:12:49 |
| R1.htm | 34031 | 2021-03-10 07:12:49 |
| report.css | 2767 | 2021-03-10 07:12:49 |
| Show.js | 1085 | 2021-03-10 07:12:49 |