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| 0001493152-21-014591.txt | 2021-06-16 17:27:59 | |
 0001493152-21-014591-xbrl.zip | 80532 | 2021-06-16 17:27:59 |
| denr-20210228.xml | 431166 | 2021-06-16 17:27:59 |
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| R9.htm | 7911 | 2021-06-16 17:27:59 |
| report.css | 2767 | 2021-06-16 17:27:59 |
| Show.js | 1085 | 2021-06-16 17:27:59 |