Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001558370-22-006593-index-headers.html | 2022-05-02 13:03:44 | |
| 0001558370-22-006593-index.html | 2022-05-02 13:03:44 | |
| 0001558370-22-006593.txt | 2022-05-02 13:03:44 | |
 0001558370-22-006593-xbrl.zip | 49969 | 2022-05-02 13:03:44 |
| dwsn-20211231.xsd | 4263 | 2022-05-02 13:03:44 |
| dwsn-20211231x10ka.htm | 609457 | 2022-05-02 13:03:44 |
| dwsn-20211231x10ka_htm.xml | 8106 | 2022-05-02 13:03:44 |
| dwsn-20211231xex31d3.htm | 7029 | 2022-05-02 13:03:44 |
| dwsn-20211231xex31d4.htm | 7075 | 2022-05-02 13:03:44 |
| dwsn-20211231_def.xml | 30294 | 2022-05-02 13:03:44 |
| dwsn-20211231_lab.xml | 25635 | 2022-05-02 13:03:44 |
| dwsn-20211231_pre.xml | 16100 | 2022-05-02 13:03:44 |
| FilingSummary.xml | 1825 | 2022-05-02 13:03:44 |
| Financial_Report.xlsx | 6207 | 2022-05-02 13:03:44 |
| MetaLinks.json | 25602 | 2022-05-02 13:03:44 |
| R1.htm | 67027 | 2022-05-02 13:03:44 |
| report.css | 2767 | 2022-05-02 13:03:44 |
| Show.js | 1085 | 2022-05-02 13:03:44 |