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| 0001166928-20-000111-index.html | 2020-07-23 07:45:27 | |
| 0001166928-20-000111.txt | 2020-07-23 07:45:27 | |
| exhibit101-401kamendment.htm | 3770 | 2020-07-23 07:45:27 |
 exhibit101-401kamendment001.jpg | 186025 | 2020-07-23 07:45:27 |
| exhibit102-401kamendment.htm | 2689 | 2020-07-23 07:45:27 |
 exhibit102-401kamendment001.jpg | 127287 | 2020-07-23 07:45:27 |
| exhibit103-401kamendment.htm | 647 | 2020-07-23 07:45:27 |
 exhibit103-401kamendment001.jpg | 121786 | 2020-07-23 07:45:27 |
| exhibit104-401kamendment.htm | 1559 | 2020-07-23 07:45:27 |
 exhibit104-401kamendment001.jpg | 207721 | 2020-07-23 07:45:27 |
 exhibit104-401kamendment002.jpg | 236522 | 2020-07-23 07:45:27 |
 exhibit104-401kamendment003.jpg | 266520 | 2020-07-23 07:45:27 |
 exhibit104-401kamendment004.jpg | 84368 | 2020-07-23 07:45:27 |
| wtba-20200630x10q.htm | 3318200 | 2020-07-23 07:45:27 |
| wtba-20200630xex311.htm | 11374 | 2020-07-23 07:45:27 |
| wtba-20200630xex312.htm | 11365 | 2020-07-23 07:45:27 |
| wtba-20200630xex321.htm | 3626 | 2020-07-23 07:45:27 |
| wtba-20200630xex322.htm | 3686 | 2020-07-23 07:45:27 |