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| 0000045876-20-000077-index.html | 2020-04-07 08:34:47 | |
| 0000045876-20-000077.txt | 2020-04-07 08:34:47 | |
 0000045876-20-000077-xbrl.zip | 17353 | 2020-04-07 08:34:47 |
| a8-kdocument04072020.htm | 49116 | 2020-04-07 08:34:47 |
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| hsc-20200406_lab.xml | 26147 | 2020-04-07 08:34:47 |
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| hscexhibit99104072020.htm | 16607 | 2020-04-07 08:34:47 |
 imagepica17.jpg | 11372 | 2020-04-07 08:34:47 |
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| R1.htm | 38667 | 2020-04-07 08:34:47 |
| report.css | 2767 | 2020-04-07 08:34:47 |
| Show.js | 1085 | 2020-04-07 08:34:47 |