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| 0001493152-22-013743.txt | 2022-05-16 16:01:49 | |
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| ex31-1.htm | 20532 | 2022-05-16 16:01:49 |
| ex31-2.htm | 20635 | 2022-05-16 16:01:49 |
| ex32-1.htm | 9747 | 2022-05-16 16:01:49 |
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| Financial_Report.xlsx | 23262 | 2022-05-16 16:01:49 |
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| R12.htm | 19698 | 2022-05-16 16:01:49 |
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| R14.htm | 13755 | 2022-05-16 16:01:49 |
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| R2.htm | 48487 | 2022-05-16 16:01:49 |
| R3.htm | 19612 | 2022-05-16 16:01:49 |
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| report.css | 2767 | 2022-05-16 16:01:49 |
| Show.js | 1085 | 2022-05-16 16:01:49 |
| ytfd-20220331.xsd | 11007 | 2022-05-16 16:01:49 |
| ytfd-20220331_cal.xml | 17990 | 2022-05-16 16:01:49 |
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| ytfd-20220331_lab.xml | 103986 | 2022-05-16 16:01:49 |
| ytfd-20220331_pre.xml | 76107 | 2022-05-16 16:01:49 |