Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000013239-21-000016-index-headers.html | 2021-08-02 07:06:11 | |
| 0000013239-21-000016-index.html | 2021-08-02 07:06:11 | |
| 0000013239-21-000016.txt | 2021-08-02 07:06:11 | |
 0000013239-21-000016-xbrl.zip | 57968 | 2021-08-02 07:06:11 |
| exhibit991strategicannounc.htm | 11916 | 2021-08-02 07:06:11 |
| FilingSummary.xml | 1737 | 2021-08-02 07:06:11 |
| Financial_Report.xlsx | 5551 | 2021-08-02 07:06:11 |
| hsc-20210802.htm | 30205 | 2021-08-02 07:06:11 |
| hsc-20210802.xsd | 2158 | 2021-08-02 07:06:11 |
| hsc-20210802_def.xml | 13206 | 2021-08-02 07:06:11 |
 hsc-20210802_g1.jpg | 56122 | 2021-08-02 07:06:11 |
| hsc-20210802_htm.xml | 9677 | 2021-08-02 07:06:11 |
| hsc-20210802_lab.xml | 25225 | 2021-08-02 07:06:11 |
| hsc-20210802_pre.xml | 13575 | 2021-08-02 07:06:11 |
 image_0.jpg | 13762 | 2021-08-02 07:06:11 |
| MetaLinks.json | 17772 | 2021-08-02 07:06:11 |
| R1.htm | 34032 | 2021-08-02 07:06:11 |
| report.css | 2767 | 2021-08-02 07:06:11 |
| Show.js | 1085 | 2021-08-02 07:06:11 |