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| 0001410578-22-002134.txt | 2022-08-08 17:01:28 | |
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| FilingSummary.xml | 24207 | 2022-08-08 17:01:28 |
| Financial_Report.xlsx | 79485 | 2022-08-08 17:01:28 |
| hdsn-20220630.xsd | 39249 | 2022-08-08 17:01:28 |
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| hdsn-20220630_cal.xml | 53789 | 2022-08-08 17:01:28 |
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