Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001493152-20-009566-index-headers.html | 2020-05-20 17:26:50 | |
| 0001493152-20-009566-index.html | 2020-05-20 17:26:50 | |
| 0001493152-20-009566.txt | 2020-05-20 17:26:50 | |
 0001493152-20-009566-xbrl.zip | 55722 | 2020-05-20 17:26:50 |
| ex31.htm | 18583 | 2020-05-20 17:26:50 |
| ex32.htm | 6722 | 2020-05-20 17:26:50 |
| FilingSummary.xml | 16712 | 2020-05-20 17:26:50 |
| Financial_Report.xlsx | 32805 | 2020-05-20 17:26:50 |
| form10-q.htm | 394857 | 2020-05-20 17:26:50 |
| hpto-20200331.xml | 235606 | 2020-05-20 17:26:50 |
| hpto-20200331.xsd | 29348 | 2020-05-20 17:26:50 |
| hpto-20200331_cal.xml | 30529 | 2020-05-20 17:26:50 |
| hpto-20200331_def.xml | 74937 | 2020-05-20 17:26:50 |
| hpto-20200331_lab.xml | 206296 | 2020-05-20 17:26:50 |
| hpto-20200331_pre.xml | 136125 | 2020-05-20 17:26:50 |
 logo_001.jpg | 4283 | 2020-05-20 17:26:50 |
| R1.htm | 29252 | 2020-05-20 17:26:50 |
| R10.htm | 34210 | 2020-05-20 17:26:50 |
| R11.htm | 9066 | 2020-05-20 17:26:50 |
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| R15.htm | 37953 | 2020-05-20 17:26:50 |
| R16.htm | 11163 | 2020-05-20 17:26:50 |
| R17.htm | 30750 | 2020-05-20 17:26:50 |
| R18.htm | 10024 | 2020-05-20 17:26:50 |
| R19.htm | 22108 | 2020-05-20 17:26:50 |
| R2.htm | 69251 | 2020-05-20 17:26:50 |
| R20.htm | 4745 | 2020-05-20 17:26:50 |
| R21.htm | 12209 | 2020-05-20 17:26:50 |
| R22.htm | 36699 | 2020-05-20 17:26:50 |
| R23.htm | 38775 | 2020-05-20 17:26:50 |
| R24.htm | 30785 | 2020-05-20 17:26:50 |
| R25.htm | 12621 | 2020-05-20 17:26:50 |
| R26.htm | 4102 | 2020-05-20 17:26:50 |
| R27.htm | 21793 | 2020-05-20 17:26:50 |
| R3.htm | 18937 | 2020-05-20 17:26:50 |
| R4.htm | 65787 | 2020-05-20 17:26:50 |
| R5.htm | 26468 | 2020-05-20 17:26:50 |
| R6.htm | 46248 | 2020-05-20 17:26:50 |
| R7.htm | 6684 | 2020-05-20 17:26:50 |
| R8.htm | 18375 | 2020-05-20 17:26:50 |
| R9.htm | 12062 | 2020-05-20 17:26:50 |
| report.css | 2767 | 2020-05-20 17:26:50 |
| Show.js | 1085 | 2020-05-20 17:26:50 |