Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001166928-23-000111-index-headers.html | 2023-07-27 07:06:23 | |
| 0001166928-23-000111-index.html | 2023-07-27 07:06:23 | |
| 0001166928-23-000111.txt | 2023-07-27 07:06:23 | |
 0001166928-23-000111-xbrl.zip | 286058 | 2023-07-27 07:06:23 |
| FilingSummary.xml | 33524 | 2023-07-27 07:06:23 |
| Financial_Report.xlsx | 118719 | 2023-07-27 07:06:23 |
| MetaLinks.json | 794114 | 2023-07-27 07:06:23 |
| R1.htm | 51525 | 2023-07-27 07:06:23 |
| R10.htm | 756927 | 2023-07-27 07:06:23 |
| R11.htm | 33503 | 2023-07-27 07:06:23 |
| R12.htm | 32587 | 2023-07-27 07:06:23 |
| R13.htm | 30804 | 2023-07-27 07:06:23 |
| R14.htm | 17288 | 2023-07-27 07:06:23 |
| R15.htm | 163707 | 2023-07-27 07:06:23 |
| R16.htm | 15384 | 2023-07-27 07:06:23 |
| R17.htm | 8480 | 2023-07-27 07:06:23 |
| R18.htm | 74639 | 2023-07-27 07:06:23 |
| R19.htm | 26843 | 2023-07-27 07:06:23 |
| R2.htm | 121866 | 2023-07-27 07:06:23 |
| R20.htm | 27791 | 2023-07-27 07:06:23 |
| R21.htm | 128400 | 2023-07-27 07:06:23 |
| R22.htm | 747197 | 2023-07-27 07:06:23 |
| R23.htm | 31090 | 2023-07-27 07:06:23 |
| R24.htm | 29826 | 2023-07-27 07:06:23 |
| R25.htm | 30267 | 2023-07-27 07:06:23 |
| R26.htm | 11589 | 2023-07-27 07:06:23 |
| R27.htm | 156691 | 2023-07-27 07:06:23 |
| R28.htm | 53217 | 2023-07-27 07:06:23 |
| R29.htm | 37576 | 2023-07-27 07:06:23 |
| R3.htm | 113839 | 2023-07-27 07:06:23 |
| R30.htm | 32069 | 2023-07-27 07:06:23 |
| R31.htm | 30099 | 2023-07-27 07:06:23 |
| R32.htm | 6472 | 2023-07-27 07:06:23 |
| R33.htm | 53338 | 2023-07-27 07:06:23 |
| R34.htm | 6285 | 2023-07-27 07:06:23 |
| R35.htm | 22345 | 2023-07-27 07:06:23 |
| R36.htm | 59982 | 2023-07-27 07:06:23 |
| R37.htm | 33608 | 2023-07-27 07:06:23 |
| R38.htm | 27903 | 2023-07-27 07:06:23 |
| R39.htm | 30150 | 2023-07-27 07:06:23 |
| R4.htm | 43485 | 2023-07-27 07:06:23 |
| R40.htm | 65033 | 2023-07-27 07:06:23 |
| R41.htm | 7969 | 2023-07-27 07:06:23 |
| R42.htm | 256012 | 2023-07-27 07:06:23 |
| R43.htm | 22096 | 2023-07-27 07:06:23 |
| R44.htm | 13345 | 2023-07-27 07:06:23 |
| R45.htm | 48567 | 2023-07-27 07:06:23 |
| R46.htm | 16265 | 2023-07-27 07:06:23 |
| R47.htm | 40511 | 2023-07-27 07:06:23 |
| R48.htm | 31817 | 2023-07-27 07:06:23 |
| R49.htm | 12029 | 2023-07-27 07:06:23 |
| R5.htm | 72106 | 2023-07-27 07:06:23 |
| R50.htm | 4196 | 2023-07-27 07:06:23 |
| R51.htm | 12063 | 2023-07-27 07:06:23 |
| R52.htm | 69395 | 2023-07-27 07:06:23 |
| R53.htm | 76006 | 2023-07-27 07:06:23 |
| R54.htm | 4057 | 2023-07-27 07:06:23 |
| R6.htm | 92436 | 2023-07-27 07:06:23 |
| R7.htm | 40309 | 2023-07-27 07:06:23 |
| R8.htm | 29180 | 2023-07-27 07:06:23 |
| R9.htm | 125676 | 2023-07-27 07:06:23 |
| report.css | 2767 | 2023-07-27 07:06:23 |
| Show.js | 1085 | 2023-07-27 07:06:23 |
| wtba-20230630.htm | 3172955 | 2023-07-27 07:06:23 |
| wtba-20230630.xsd | 40327 | 2023-07-27 07:06:23 |
| wtba-20230630xex311.htm | 10143 | 2023-07-27 07:06:23 |
| wtba-20230630xex312.htm | 10115 | 2023-07-27 07:06:23 |
| wtba-20230630xex321.htm | 3170 | 2023-07-27 07:06:23 |
| wtba-20230630xex322.htm | 3212 | 2023-07-27 07:06:23 |
| wtba-20230630_cal.xml | 96657 | 2023-07-27 07:06:23 |
| wtba-20230630_def.xml | 260641 | 2023-07-27 07:06:23 |
| wtba-20230630_htm.xml | 3275139 | 2023-07-27 07:06:23 |
| wtba-20230630_lab.xml | 686762 | 2023-07-27 07:06:23 |
| wtba-20230630_pre.xml | 468593 | 2023-07-27 07:06:23 |