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| 0001410578-22-001262-index.html | 2022-05-10 16:58:15 | |
| 0001410578-22-001262.txt | 2022-05-10 16:58:15 | |
 0001410578-22-001262-xbrl.zip | 168320 | 2022-05-10 16:58:15 |
| FilingSummary.xml | 24227 | 2022-05-10 16:58:15 |
| Financial_Report.xlsx | 74549 | 2022-05-10 16:58:15 |
| hdsn-20220331.xsd | 40826 | 2022-05-10 16:58:15 |
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| hdsn-20220331_cal.xml | 52331 | 2022-05-10 16:58:15 |
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