Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001558370-17-008080-index-headers.html | 2017-11-03 11:19:23 | |
| 0001558370-17-008080-index.html | 2017-11-03 11:19:23 | |
| 0001558370-17-008080.txt | 2017-11-03 11:19:23 | |
 0001558370-17-008080-xbrl.zip | 59761 | 2017-11-03 11:19:23 |
| dwsn-20170930.xml | 499703 | 2017-11-03 11:19:23 |
| dwsn-20170930.xsd | 19005 | 2017-11-03 11:19:23 |
| dwsn-20170930ex311c51739.htm | 15429 | 2017-11-03 11:19:23 |
| dwsn-20170930ex31264a61a.htm | 15857 | 2017-11-03 11:19:23 |
| dwsn-20170930ex3219ee4dc.htm | 7659 | 2017-11-03 11:19:23 |
| dwsn-20170930ex322af5f07.htm | 7741 | 2017-11-03 11:19:23 |
| dwsn-20170930x10q.htm | 1048944 | 2017-11-03 11:19:23 |
| dwsn-20170930_cal.xml | 43074 | 2017-11-03 11:19:23 |
| dwsn-20170930_def.xml | 39545 | 2017-11-03 11:19:23 |
| dwsn-20170930_lab.xml | 232383 | 2017-11-03 11:19:23 |
| dwsn-20170930_pre.xml | 140694 | 2017-11-03 11:19:23 |
| FilingSummary.xml | 13201 | 2017-11-03 11:19:23 |
| Financial_Report.xlsx | 32016 | 2017-11-03 11:19:23 |
| R1.htm | 22245 | 2017-11-03 11:19:23 |
| R10.htm | 7133 | 2017-11-03 11:19:23 |
| R11.htm | 114669 | 2017-11-03 11:19:23 |
| R12.htm | 8317 | 2017-11-03 11:19:23 |
| R13.htm | 5180 | 2017-11-03 11:19:23 |
| R14.htm | 46462 | 2017-11-03 11:19:23 |
| R15.htm | 62322 | 2017-11-03 11:19:23 |
| R16.htm | 113056 | 2017-11-03 11:19:23 |
| R17.htm | 8495 | 2017-11-03 11:19:23 |
| R18.htm | 70407 | 2017-11-03 11:19:23 |
| R19.htm | 23961 | 2017-11-03 11:19:23 |
| R2.htm | 87110 | 2017-11-03 11:19:23 |
| R20.htm | 19181 | 2017-11-03 11:19:23 |
| R21.htm | 11253 | 2017-11-03 11:19:23 |
| R3.htm | 19010 | 2017-11-03 11:19:23 |
| R4.htm | 52162 | 2017-11-03 11:19:23 |
| R5.htm | 87811 | 2017-11-03 11:19:23 |
| R6.htm | 5565 | 2017-11-03 11:19:23 |
| R7.htm | 29900 | 2017-11-03 11:19:23 |
| R8.htm | 7831 | 2017-11-03 11:19:23 |
| R9.htm | 66308 | 2017-11-03 11:19:23 |
| report.css | 2767 | 2017-11-03 11:19:23 |
| Show.js | 1410 | 2017-11-03 11:19:23 |