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| 0001558370-21-014640.txt | 2021-11-04 16:47:14 | |
 0001558370-21-014640-xbrl.zip | 135356 | 2021-11-04 16:47:14 |
| dwsn-20210930.xsd | 25923 | 2021-11-04 16:47:14 |
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| dwsn-20210930xex32d1.htm | 8039 | 2021-11-04 16:47:14 |
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| report.css | 2767 | 2021-11-04 16:47:14 |
| Show.js | 1085 | 2021-11-04 16:47:14 |