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| 0000945764-21-000091-index.html | 2021-11-04 09:34:05 | |
| 0000945764-21-000091.txt | 2021-11-04 09:34:05 | |
 0000945764-21-000091-xbrl.zip | 258282 | 2021-11-04 09:34:05 |
| den-20210930.htm | 1949485 | 2021-11-04 09:34:05 |
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| den-20210930.xsd | 32212 | 2021-11-04 09:34:05 |
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| den-20210930xex31a.htm | 10868 | 2021-11-04 09:34:05 |
| den-20210930xex31b.htm | 10888 | 2021-11-04 09:34:05 |
| den-20210930xex32.htm | 7845 | 2021-11-04 09:34:05 |
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| den-20210930_htm.xml | 993315 | 2021-11-04 09:34:05 |
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| Financial_Report.xlsx | 67871 | 2021-11-04 09:34:05 |
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| R1.htm | 54419 | 2021-11-04 09:34:05 |
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| report.css | 2767 | 2021-11-04 09:34:05 |
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