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 0001683168-19-000747-index-headers.html | 2019-03-21 15:59:54 | |
| 0001683168-19-000747-index.html | 2019-03-21 15:59:54 | |
| 0001683168-19-000747.txt | 2019-03-21 15:59:54 | |
 0001683168-19-000747-xbrl.zip | 36400 | 2019-03-21 15:59:54 |
| FilingSummary.xml | 18479 | 2019-03-21 15:59:54 |
| Financial_Report.xlsx | 33814 | 2019-03-21 15:59:54 |
| hdhc_10k-123118.htm | 410529 | 2019-03-21 15:59:54 |
| hdhc_10k-ex3101.htm | 7341 | 2019-03-21 15:59:54 |
| hdhc_10k-ex3102.htm | 7316 | 2019-03-21 15:59:54 |
| hdhc_10k-ex3201.htm | 3749 | 2019-03-21 15:59:54 |
| hdhc_10k-ex3202.htm | 3670 | 2019-03-21 15:59:54 |
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| none-20181231.xml | 143379 | 2019-03-21 15:59:54 |
| none-20181231.xsd | 18098 | 2019-03-21 15:59:54 |
| none-20181231_cal.xml | 25513 | 2019-03-21 15:59:54 |
| none-20181231_def.xml | 37556 | 2019-03-21 15:59:54 |
| none-20181231_lab.xml | 110740 | 2019-03-21 15:59:54 |
| none-20181231_pre.xml | 98079 | 2019-03-21 15:59:54 |
| R1.htm | 33862 | 2019-03-21 15:59:54 |
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| R8.htm | 23395 | 2019-03-21 15:59:54 |
| R9.htm | 6150 | 2019-03-21 15:59:54 |
| report.css | 2767 | 2019-03-21 15:59:54 |
| Show.js | 1085 | 2019-03-21 15:59:54 |