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|---|---|---|
 0001493152-21-018338-index-headers.html | 2021-08-02 17:30:56 | |
| 0001493152-21-018338-index.html | 2021-08-02 17:30:56 | |
| 0001493152-21-018338.txt | 2021-08-02 17:30:56 | |
 0001493152-21-018338-xbrl.zip | 49802 | 2021-08-02 17:30:56 |
| ex31-1.htm | 20534 | 2021-08-02 17:30:56 |
| ex31-2.htm | 20534 | 2021-08-02 17:30:56 |
| ex32-1.htm | 7005 | 2021-08-02 17:30:56 |
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| Financial_Report.xlsx | 21340 | 2021-08-02 17:30:56 |
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| form10-q_htm.xml | 66012 | 2021-08-02 17:30:56 |
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| R10.htm | 5656 | 2021-08-02 17:30:56 |
| R11.htm | 19277 | 2021-08-02 17:30:56 |
| R12.htm | 22364 | 2021-08-02 17:30:56 |
| R13.htm | 20705 | 2021-08-02 17:30:56 |
| R2.htm | 49192 | 2021-08-02 17:30:56 |
| R3.htm | 19553 | 2021-08-02 17:30:56 |
| R4.htm | 45937 | 2021-08-02 17:30:56 |
| R5.htm | 22401 | 2021-08-02 17:30:56 |
| R6.htm | 37736 | 2021-08-02 17:30:56 |
| R7.htm | 7730 | 2021-08-02 17:30:56 |
| R8.htm | 13259 | 2021-08-02 17:30:56 |
| R9.htm | 9198 | 2021-08-02 17:30:56 |
| report.css | 2767 | 2021-08-02 17:30:56 |
| Show.js | 1085 | 2021-08-02 17:30:56 |
| ytfd-20210630.xsd | 8673 | 2021-08-02 17:30:56 |
| ytfd-20210630_cal.xml | 16529 | 2021-08-02 17:30:56 |
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