Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001047469-16-011203-index-headers.html | 2016-03-16 06:10:47 | |
| 0001047469-16-011203-index.html | 2016-03-16 06:10:47 | |
| 0001047469-16-011203.txt | 2016-03-16 06:10:47 | |
 0001047469-16-011203-xbrl.zip | 159175 | 2016-03-16 06:10:47 |
| a2227664z10-k.htm | 1248302 | 2016-03-16 06:10:47 |
| a2227664zex-10_11.htm | 53719 | 2016-03-16 06:10:47 |
| a2227664zex-21_1.htm | 2900 | 2016-03-16 06:10:47 |
| a2227664zex-23_1.htm | 4978 | 2016-03-16 06:10:47 |
| a2227664zex-31_1.htm | 8292 | 2016-03-16 06:10:47 |
| a2227664zex-31_2.htm | 8226 | 2016-03-16 06:10:47 |
| a2227664zex-31_3.htm | 8234 | 2016-03-16 06:10:47 |
| a2227664zex-32_1.htm | 4684 | 2016-03-16 06:10:47 |
| a2227664zex-32_2.htm | 4744 | 2016-03-16 06:10:47 |
| a2227664zex-32_3.htm | 4719 | 2016-03-16 06:10:47 |
| dwsn-20151231.xml | 2200807 | 2016-03-16 06:10:47 |
| dwsn-20151231.xsd | 50825 | 2016-03-16 06:10:47 |
| dwsn-20151231_cal.xml | 81180 | 2016-03-16 06:10:47 |
| dwsn-20151231_def.xml | 186317 | 2016-03-16 06:10:47 |
| dwsn-20151231_lab.xml | 553209 | 2016-03-16 06:10:47 |
| dwsn-20151231_pre.xml | 383897 | 2016-03-16 06:10:47 |
| FilingSummary.xml | 36142 | 2016-03-16 06:10:47 |
| Financial_Report.xlsx | 77378 | 2016-03-16 06:10:47 |
 g644580.jpg | 44523 | 2016-03-16 06:10:47 |
| R1.htm | 28247 | 2016-03-16 06:10:47 |
| R10.htm | 79301 | 2016-03-16 06:10:47 |
| R11.htm | 45095 | 2016-03-16 06:10:47 |
| R12.htm | 28498 | 2016-03-16 06:10:47 |
| R13.htm | 56476 | 2016-03-16 06:10:47 |
| R14.htm | 145814 | 2016-03-16 06:10:47 |
| R15.htm | 5830 | 2016-03-16 06:10:47 |
| R16.htm | 7566 | 2016-03-16 06:10:47 |
| R17.htm | 5198 | 2016-03-16 06:10:47 |
| R18.htm | 201997 | 2016-03-16 06:10:47 |
| R19.htm | 165762 | 2016-03-16 06:10:47 |
| R2.htm | 81216 | 2016-03-16 06:10:47 |
| R20.htm | 26061 | 2016-03-16 06:10:47 |
| R21.htm | 8470 | 2016-03-16 06:10:47 |
| R22.htm | 34624 | 2016-03-16 06:10:47 |
| R23.htm | 6400 | 2016-03-16 06:10:47 |
| R24.htm | 13487 | 2016-03-16 06:10:47 |
| R25.htm | 8239 | 2016-03-16 06:10:47 |
| R26.htm | 94085 | 2016-03-16 06:10:47 |
| R27.htm | 65325 | 2016-03-16 06:10:47 |
| R28.htm | 67515 | 2016-03-16 06:10:47 |
| R29.htm | 44003 | 2016-03-16 06:10:47 |
| R3.htm | 22914 | 2016-03-16 06:10:47 |
| R30.htm | 27951 | 2016-03-16 06:10:47 |
| R31.htm | 56213 | 2016-03-16 06:10:47 |
| R32.htm | 140447 | 2016-03-16 06:10:47 |
| R33.htm | 207349 | 2016-03-16 06:10:47 |
| R34.htm | 167662 | 2016-03-16 06:10:47 |
| R35.htm | 22106 | 2016-03-16 06:10:47 |
| R36.htm | 30077 | 2016-03-16 06:10:47 |
| R37.htm | 92748 | 2016-03-16 06:10:47 |
| R38.htm | 14528 | 2016-03-16 06:10:47 |
| R39.htm | 5868 | 2016-03-16 06:10:47 |
| R4.htm | 64152 | 2016-03-16 06:10:47 |
| R40.htm | 88731 | 2016-03-16 06:10:47 |
| R41.htm | 33207 | 2016-03-16 06:10:47 |
| R42.htm | 11551 | 2016-03-16 06:10:47 |
| R43.htm | 77317 | 2016-03-16 06:10:47 |
| R44.htm | 40639 | 2016-03-16 06:10:47 |
| R45.htm | 57290 | 2016-03-16 06:10:47 |
| R46.htm | 44183 | 2016-03-16 06:10:47 |
| R47.htm | 8799 | 2016-03-16 06:10:47 |
| R48.htm | 11147 | 2016-03-16 06:10:47 |
| R49.htm | 4722 | 2016-03-16 06:10:47 |
| R5.htm | 79767 | 2016-03-16 06:10:47 |
| R50.htm | 114168 | 2016-03-16 06:10:47 |
| R51.htm | 36213 | 2016-03-16 06:10:47 |
| R52.htm | 12501 | 2016-03-16 06:10:47 |
| R53.htm | 7488 | 2016-03-16 06:10:47 |
| R54.htm | 16543 | 2016-03-16 06:10:47 |
| R55.htm | 12490 | 2016-03-16 06:10:47 |
| R56.htm | 12530 | 2016-03-16 06:10:47 |
| R57.htm | 11948 | 2016-03-16 06:10:47 |
| R58.htm | 7263 | 2016-03-16 06:10:47 |
| R59.htm | 8397 | 2016-03-16 06:10:47 |
| R6.htm | 105178 | 2016-03-16 06:10:47 |
| R60.htm | 23308 | 2016-03-16 06:10:47 |
| R7.htm | 24379 | 2016-03-16 06:10:47 |
| R8.htm | 5763 | 2016-03-16 06:10:47 |
| R9.htm | 9477 | 2016-03-16 06:10:47 |
| report.css | 2767 | 2016-03-16 06:10:47 |
| Show.js | 1410 | 2016-03-16 06:10:47 |