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| 0000007039-18-000017-index.html | 2018-05-04 11:19:57 | |
| 0000007039-18-000017.txt | 2018-05-04 11:19:57 | |
 0000007039-18-000017-xbrl.zip | 151498 | 2018-05-04 11:19:57 |
| exhibit10a.htm | 16053 | 2018-05-04 11:19:57 |
| exhibit10b.htm | 39039 | 2018-05-04 11:19:57 |
| exhibit311.htm | 11284 | 2018-05-04 11:19:57 |
| exhibit312.htm | 11418 | 2018-05-04 11:19:57 |
| exhibit321.htm | 2752 | 2018-05-04 11:19:57 |
| exhibit322.htm | 2683 | 2018-05-04 11:19:57 |
| FilingSummary.xml | 33750 | 2018-05-04 11:19:57 |
| Financial_Report.xlsx | 68782 | 2018-05-04 11:19:57 |
| form10q033118.htm | 913245 | 2018-05-04 11:19:57 |
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| report.css | 2767 | 2018-05-04 11:19:57 |
| Show.js | 1410 | 2018-05-04 11:19:57 |
| trec-20180331.xml | 1157192 | 2018-05-04 11:19:57 |
| trec-20180331.xsd | 49471 | 2018-05-04 11:19:57 |
| trec-20180331_cal.xml | 78038 | 2018-05-04 11:19:57 |
| trec-20180331_def.xml | 223618 | 2018-05-04 11:19:57 |
| trec-20180331_lab.xml | 696942 | 2018-05-04 11:19:57 |
| trec-20180331_pre.xml | 387013 | 2018-05-04 11:19:57 |