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|---|---|---|
 0001674796-19-000071-index-headers.html | 2019-05-15 18:17:59 | |
| 0001674796-19-000071-index.html | 2019-05-15 18:17:59 | |
| 0001674796-19-000071.txt | 2019-05-15 18:17:59 | |
 0001674796-19-000071-xbrl.zip | 35123 | 2019-05-15 18:17:59 |
| exhibit31-1.htm | 8060 | 2019-05-15 18:17:59 |
| exhibit31-2.htm | 8004 | 2019-05-15 18:17:59 |
| exhibit32-1.htm | 3652 | 2019-05-15 18:17:59 |
| exhibit32-2.htm | 3769 | 2019-05-15 18:17:59 |
| FilingSummary.xml | 16196 | 2019-05-15 18:17:59 |
| Financial_Report.xlsx | 26595 | 2019-05-15 18:17:59 |
| hstc-20190331.htm | 189554 | 2019-05-15 18:17:59 |
| hstc-20190331.xsd | 15251 | 2019-05-15 18:17:59 |
| hstc-20190331_cal.xml | 17241 | 2019-05-15 18:17:59 |
| hstc-20190331_def.xml | 19225 | 2019-05-15 18:17:59 |
| hstc-20190331_htm.xml | 64428 | 2019-05-15 18:17:59 |
| hstc-20190331_lab.xml | 85291 | 2019-05-15 18:17:59 |
| hstc-20190331_pre.xml | 73080 | 2019-05-15 18:17:59 |
| MetaLinks.json | 164057 | 2019-05-15 18:17:59 |
| R1.htm | 47105 | 2019-05-15 18:17:59 |
| R10.htm | 5025 | 2019-05-15 18:17:59 |
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| R8.htm | 13476 | 2019-05-15 18:17:59 |
| R9.htm | 6876 | 2019-05-15 18:17:59 |
| report.css | 2767 | 2019-05-15 18:17:59 |
| Show.js | 1085 | 2019-05-15 18:17:59 |