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| 0000945764-22-000075.txt | 2022-08-04 08:56:03 | |
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| den-20220630.htm | 1535679 | 2022-08-04 08:56:03 |
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| den-20220630.xsd | 34110 | 2022-08-04 08:56:03 |
| den-20220630xex31a.htm | 10866 | 2022-08-04 08:56:03 |
| den-20220630xex31b.htm | 10886 | 2022-08-04 08:56:03 |
| den-20220630xex32.htm | 7836 | 2022-08-04 08:56:03 |
| den-20220630_cal.xml | 67181 | 2022-08-04 08:56:03 |
| den-20220630_def.xml | 115611 | 2022-08-04 08:56:03 |
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| den-20220630_htm.xml | 821861 | 2022-08-04 08:56:03 |
| den-20220630_lab.xml | 438377 | 2022-08-04 08:56:03 |
| den-20220630_pre.xml | 270175 | 2022-08-04 08:56:03 |
| FilingSummary.xml | 29091 | 2022-08-04 08:56:03 |
| Financial_Report.xlsx | 73113 | 2022-08-04 08:56:03 |
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| R1.htm | 54356 | 2022-08-04 08:56:03 |
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| report.css | 2767 | 2022-08-04 08:56:03 |
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