Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001674796-20-000032-index-headers.html | 2020-08-10 15:53:56 | |
| 0001674796-20-000032-index.html | 2020-08-10 15:53:56 | |
| 0001674796-20-000032.txt | 2020-08-10 15:53:56 | |
 0001674796-20-000032-xbrl.zip | 36731 | 2020-08-10 15:53:56 |
| exhibit31-1.htm | 8031 | 2020-08-10 15:53:56 |
| exhibit31-2.htm | 7997 | 2020-08-10 15:53:56 |
| exhibit32-1.htm | 3684 | 2020-08-10 15:53:56 |
| exhibit32-2.htm | 3801 | 2020-08-10 15:53:56 |
| FilingSummary.xml | 14005 | 2020-08-10 15:53:56 |
| Financial_Report.xlsx | 27652 | 2020-08-10 15:53:56 |
| hstc-20200630.htm | 224645 | 2020-08-10 15:53:56 |
| hstc-20200630.xsd | 13722 | 2020-08-10 15:53:56 |
| hstc-20200630_cal.xml | 17749 | 2020-08-10 15:53:56 |
| hstc-20200630_def.xml | 19130 | 2020-08-10 15:53:56 |
| hstc-20200630_htm.xml | 70924 | 2020-08-10 15:53:56 |
| hstc-20200630_lab.xml | 88676 | 2020-08-10 15:53:56 |
| hstc-20200630_pre.xml | 72825 | 2020-08-10 15:53:56 |
| MetaLinks.json | 180464 | 2020-08-10 15:53:56 |
| R1.htm | 45853 | 2020-08-10 15:53:56 |
| R10.htm | 7649 | 2020-08-10 15:53:56 |
| R11.htm | 5279 | 2020-08-10 15:53:56 |
| R12.htm | 5232 | 2020-08-10 15:53:56 |
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| R18.htm | 5548 | 2020-08-10 15:53:56 |
| R19.htm | 5908 | 2020-08-10 15:53:56 |
| R2.htm | 52651 | 2020-08-10 15:53:56 |
| R20.htm | 4746 | 2020-08-10 15:53:56 |
| R21.htm | 16040 | 2020-08-10 15:53:56 |
| R3.htm | 18891 | 2020-08-10 15:53:56 |
| R4.htm | 47603 | 2020-08-10 15:53:56 |
| R5.htm | 21746 | 2020-08-10 15:53:56 |
| R6.htm | 52913 | 2020-08-10 15:53:56 |
| R7.htm | 7884 | 2020-08-10 15:53:56 |
| R8.htm | 10474 | 2020-08-10 15:53:56 |
| R9.htm | 7068 | 2020-08-10 15:53:56 |
| report.css | 2767 | 2020-08-10 15:53:56 |
| Show.js | 1085 | 2020-08-10 15:53:56 |