Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001674796-18-000007-index-headers.html | 2018-05-07 17:16:48 | |
| 0001674796-18-000007-index.html | 2018-05-07 17:16:48 | |
| 0001674796-18-000007.txt | 2018-05-07 17:16:48 | |
 0001674796-18-000007-xbrl.zip | 21741 | 2018-05-07 17:16:48 |
| exhibit31-1.htm | 8200 | 2018-05-07 17:16:48 |
| exhibit31-2.htm | 8184 | 2018-05-07 17:16:48 |
| exhibit32-1.htm | 4460 | 2018-05-07 17:16:48 |
| exhibit32-2.htm | 4494 | 2018-05-07 17:16:48 |
| FilingSummary.xml | 16082 | 2018-05-07 17:16:48 |
| Financial_Report.xlsx | 24764 | 2018-05-07 17:16:48 |
| hstc-20180331.xml | 54041 | 2018-05-07 17:16:48 |
| hstc-20180331.xsd | 13561 | 2018-05-07 17:16:48 |
| hstc-20180331_cal.xml | 16571 | 2018-05-07 17:16:48 |
| hstc-20180331_def.xml | 10279 | 2018-05-07 17:16:48 |
| hstc-20180331_lab.xml | 60426 | 2018-05-07 17:16:48 |
| hstc-20180331_pre.xml | 53464 | 2018-05-07 17:16:48 |
| hstc10-q1q2018.htm | 136786 | 2018-05-07 17:16:48 |
| R1.htm | 29804 | 2018-05-07 17:16:48 |
| R10.htm | 4688 | 2018-05-07 17:16:48 |
| R11.htm | 4670 | 2018-05-07 17:16:48 |
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| R22.htm | 11331 | 2018-05-07 17:16:48 |
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| R8.htm | 5978 | 2018-05-07 17:16:48 |
| R9.htm | 9309 | 2018-05-07 17:16:48 |
| report.css | 2767 | 2018-05-07 17:16:48 |
| Show.js | 1410 | 2018-05-07 17:16:48 |