Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000045876-21-000074-index-headers.html | 2021-04-23 16:15:20 | |
| 0000045876-21-000074-index.html | 2021-04-23 16:15:20 | |
| 0000045876-21-000074.txt | 2021-04-23 16:15:20 | |
 0000045876-21-000074-xbrl.zip | 18065 | 2021-04-23 16:15:20 |
| FilingSummary.xml | 1771 | 2021-04-23 16:15:20 |
| Financial_Report.xlsx | 5662 | 2021-04-23 16:15:20 |
| hsc-20210423.htm | 64600 | 2021-04-23 16:15:20 |
| hsc-20210423.xsd | 2425 | 2021-04-23 16:15:20 |
| hsc-20210423_cal.xml | 717 | 2021-04-23 16:15:20 |
| hsc-20210423_def.xml | 1654 | 2021-04-23 16:15:20 |
| hsc-20210423_htm.xml | 11240 | 2021-04-23 16:15:20 |
| hsc-20210423_lab.xml | 24275 | 2021-04-23 16:15:20 |
| hsc-20210423_pre.xml | 12653 | 2021-04-23 16:15:20 |
| hsc_exhibit991-04202021.htm | 8385 | 2021-04-23 16:15:20 |
| hsc_exhibit992-04202021.htm | 5514 | 2021-04-23 16:15:20 |
 image1.jpg | 5856 | 2021-04-23 16:15:20 |
 image2a.jpg | 5856 | 2021-04-23 16:15:20 |
| MetaLinks.json | 17299 | 2021-04-23 16:15:20 |
| R1.htm | 38612 | 2021-04-23 16:15:20 |
| report.css | 2767 | 2021-04-23 16:15:20 |
| Show.js | 1085 | 2021-04-23 16:15:20 |