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|---|---|---|
 0001493152-19-004200-index-headers.html | 2019-03-29 12:01:17 | |
| 0001493152-19-004200-index.html | 2019-03-29 12:01:17 | |
| 0001493152-19-004200.txt | 2019-03-29 12:01:17 | |
 0001493152-19-004200-xbrl.zip | 30204 | 2019-03-29 12:01:17 |
| ex31-1.htm | 19575 | 2019-03-29 12:01:17 |
| ex31-2.htm | 19409 | 2019-03-29 12:01:17 |
| ex32-1.htm | 7344 | 2019-03-29 12:01:17 |
| FilingSummary.xml | 14320 | 2019-03-29 12:01:17 |
| Financial_Report.xlsx | 27066 | 2019-03-29 12:01:17 |
| form10-k.htm | 353219 | 2019-03-29 12:01:17 |
 logo_001.jpg | 3563 | 2019-03-29 12:01:17 |
| R1.htm | 37268 | 2019-03-29 12:01:17 |
| R10.htm | 6133 | 2019-03-29 12:01:17 |
| R11.htm | 11120 | 2019-03-29 12:01:17 |
| R12.htm | 17899 | 2019-03-29 12:01:17 |
| R13.htm | 5061 | 2019-03-29 12:01:17 |
| R14.htm | 32638 | 2019-03-29 12:01:17 |
| R15.htm | 9897 | 2019-03-29 12:01:17 |
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| R18.htm | 18832 | 2019-03-29 12:01:17 |
| R19.htm | 13849 | 2019-03-29 12:01:17 |
| R2.htm | 32879 | 2019-03-29 12:01:17 |
| R20.htm | 7745 | 2019-03-29 12:01:17 |
| R21.htm | 4475 | 2019-03-29 12:01:17 |
| R22.htm | 8894 | 2019-03-29 12:01:17 |
| R23.htm | 8827 | 2019-03-29 12:01:17 |
| R24.htm | 10503 | 2019-03-29 12:01:17 |
| R3.htm | 18912 | 2019-03-29 12:01:17 |
| R4.htm | 25036 | 2019-03-29 12:01:17 |
| R5.htm | 11855 | 2019-03-29 12:01:17 |
| R6.htm | 34493 | 2019-03-29 12:01:17 |
| R7.htm | 6489 | 2019-03-29 12:01:17 |
| R8.htm | 14086 | 2019-03-29 12:01:17 |
| R9.htm | 6296 | 2019-03-29 12:01:17 |
| report.css | 2767 | 2019-03-29 12:01:17 |
| Show.js | 1085 | 2019-03-29 12:01:17 |
| ytfd-20181231.xml | 104327 | 2019-03-29 12:01:17 |
| ytfd-20181231.xsd | 13546 | 2019-03-29 12:01:17 |
| ytfd-20181231_cal.xml | 21087 | 2019-03-29 12:01:17 |
| ytfd-20181231_def.xml | 18850 | 2019-03-29 12:01:17 |
| ytfd-20181231_lab.xml | 89542 | 2019-03-29 12:01:17 |
| ytfd-20181231_pre.xml | 75079 | 2019-03-29 12:01:17 |