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|---|---|---|
 0001042893-18-000007-index-headers.html | 2018-04-26 17:23:53 | |
| 0001042893-18-000007-index.html | 2018-04-26 17:23:53 | |
| 0001042893-18-000007.txt | 2018-04-26 17:23:53 | |
 0001042893-18-000007-xbrl.zip | 117597 | 2018-04-26 17:23:53 |
| a201833110-q.htm | 739843 | 2018-04-26 17:23:53 |
| drq-20180331.xml | 919781 | 2018-04-26 17:23:53 |
| drq-20180331.xsd | 30170 | 2018-04-26 17:23:53 |
| drq-20180331_cal.xml | 54676 | 2018-04-26 17:23:53 |
| drq-20180331_def.xml | 104118 | 2018-04-26 17:23:53 |
| drq-20180331_lab.xml | 375817 | 2018-04-26 17:23:53 |
| drq-20180331_pre.xml | 218417 | 2018-04-26 17:23:53 |
 exhibit001.jpg | 479447 | 2018-04-26 17:23:53 |
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| exhibit3122018q1.htm | 12236 | 2018-04-26 17:23:53 |
| exhibit3212018q1.htm | 6106 | 2018-04-26 17:23:53 |
| exhibit3222018q1.htm | 6227 | 2018-04-26 17:23:53 |
| exhibit41.htm | 26207 | 2018-04-26 17:23:53 |
| FilingSummary.xml | 24957 | 2018-04-26 17:23:53 |
| Financial_Report.xlsx | 50142 | 2018-04-26 17:23:53 |
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| R9.htm | 9693 | 2018-04-26 17:23:53 |
| report.css | 2767 | 2018-04-26 17:23:53 |
| Show.js | 1410 | 2018-04-26 17:23:53 |