Parent Directory| Name | Size | Last Modified |
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| 0001104659-23-055497-index.html | 2023-05-03 16:10:28 | |
| 0001104659-23-055497.txt | 2023-05-03 16:10:28 | |
 0001104659-23-055497-xbrl.zip | 17696 | 2023-05-03 16:10:28 |
| FilingSummary.xml | 1866 | 2023-05-03 16:10:28 |
| Financial_Report.xlsx | 5709 | 2023-05-03 16:10:28 |
| hdsn-20230503.xsd | 3039 | 2023-05-03 16:10:28 |
| hdsn-20230503_lab.xml | 34476 | 2023-05-03 16:10:28 |
| hdsn-20230503_pre.xml | 22599 | 2023-05-03 16:10:28 |
| MetaLinks.json | 39434 | 2023-05-03 16:10:28 |
| R1.htm | 39604 | 2023-05-03 16:10:28 |
| report.css | 2767 | 2023-05-03 16:10:28 |
| Show.js | 1084 | 2023-05-03 16:10:28 |
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| tm2314276d1_8k_htm.xml | 3621 | 2023-05-03 16:10:28 |
| tm2314276d1_ex99-1.htm | 60807 | 2023-05-03 16:10:28 |