Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001493152-21-020265-index-headers.html | 2021-08-16 17:16:04 | |
| 0001493152-21-020265-index.html | 2021-08-16 17:16:04 | |
| 0001493152-21-020265.txt | 2021-08-16 17:16:04 | |
 0001493152-21-020265-xbrl.zip | 82696 | 2021-08-16 17:16:04 |
| ex31.htm | 17613 | 2021-08-16 17:16:04 |
| ex32.htm | 6242 | 2021-08-16 17:16:04 |
| FilingSummary.xml | 14838 | 2021-08-16 17:16:04 |
| Financial_Report.xlsx | 36733 | 2021-08-16 17:16:04 |
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 form10-q_001.jpg | 3642 | 2021-08-16 17:16:04 |
| form10-q_htm.xml | 304993 | 2021-08-16 17:16:04 |
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| hpto-20210630_lab.xml | 196388 | 2021-08-16 17:16:04 |
| hpto-20210630_pre.xml | 140459 | 2021-08-16 17:16:04 |
| MetaLinks.json | 295875 | 2021-08-16 17:16:04 |
| R1.htm | 48799 | 2021-08-16 17:16:04 |
| R10.htm | 43692 | 2021-08-16 17:16:04 |
| R11.htm | 15966 | 2021-08-16 17:16:04 |
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| R13.htm | 47796 | 2021-08-16 17:16:04 |
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| R16.htm | 16271 | 2021-08-16 17:16:04 |
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| R18.htm | 15269 | 2021-08-16 17:16:04 |
| R19.htm | 4742 | 2021-08-16 17:16:04 |
| R2.htm | 90855 | 2021-08-16 17:16:04 |
| R20.htm | 29644 | 2021-08-16 17:16:04 |
| R21.htm | 26142 | 2021-08-16 17:16:04 |
| R22.htm | 19968 | 2021-08-16 17:16:04 |
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| R24.htm | 4419 | 2021-08-16 17:16:04 |
| R3.htm | 19554 | 2021-08-16 17:16:04 |
| R4.htm | 90635 | 2021-08-16 17:16:04 |
| R5.htm | 46404 | 2021-08-16 17:16:04 |
| R6.htm | 75479 | 2021-08-16 17:16:04 |
| R7.htm | 7314 | 2021-08-16 17:16:04 |
| R8.htm | 29270 | 2021-08-16 17:16:04 |
| R9.htm | 15046 | 2021-08-16 17:16:04 |
| report.css | 2767 | 2021-08-16 17:16:04 |
| Show.js | 1085 | 2021-08-16 17:16:04 |