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|---|---|---|
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| 0000061398-21-000018-index.html | 2021-05-05 06:01:57 | |
| 0000061398-21-000018.txt | 2021-05-05 06:01:57 | |
 0000061398-21-000018-xbrl.zip | 218486 | 2021-05-05 06:01:57 |
| ex-311q121.htm | 8612 | 2021-05-05 06:01:57 |
| ex-312q121.htm | 8632 | 2021-05-05 06:01:57 |
| ex-321q121.htm | 4943 | 2021-05-05 06:01:57 |
| ex-322q121.htm | 4837 | 2021-05-05 06:01:57 |
| exhibit991.htm | 14519 | 2021-05-05 06:01:57 |
| FilingSummary.xml | 29417 | 2021-05-05 06:01:57 |
| Financial_Report.xlsx | 61385 | 2021-05-05 06:01:57 |
| MetaLinks.json | 438178 | 2021-05-05 06:01:57 |
| R1.htm | 53798 | 2021-05-05 06:01:57 |
| R10.htm | 4660 | 2021-05-05 06:01:57 |
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| R9.htm | 16944 | 2021-05-05 06:01:57 |
| report.css | 2767 | 2021-05-05 06:01:57 |
| Show.js | 1085 | 2021-05-05 06:01:57 |
| tell-20210331.htm | 705592 | 2021-05-05 06:01:57 |
| tell-20210331.xsd | 36349 | 2021-05-05 06:01:57 |
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| tell-20210331_def.xml | 137050 | 2021-05-05 06:01:57 |
 tell-20210331_g1.jpg | 67412 | 2021-05-05 06:01:57 |
| tell-20210331_htm.xml | 580206 | 2021-05-05 06:01:57 |
| tell-20210331_lab.xml | 420828 | 2021-05-05 06:01:57 |
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