Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000719220-19-000056-index-headers.html | 2019-07-31 18:11:29 | |
| 0000719220-19-000056-index.html | 2019-07-31 18:11:29 | |
| 0000719220-19-000056.txt | 2019-07-31 18:11:29 | |
 0000719220-19-000056-xbrl.zip | 458358 | 2019-07-31 18:11:29 |
| exhibit311q2-2019.htm | 11737 | 2019-07-31 18:11:29 |
| exhibit312q2-2019.htm | 11395 | 2019-07-31 18:11:29 |
| exhibit32q2-2019.htm | 6539 | 2019-07-31 18:11:29 |
| FilingSummary.xml | 48382 | 2019-07-31 18:11:29 |
| Financial_Report.xlsx | 136856 | 2019-07-31 18:11:29 |
| MetaLinks.json | 829731 | 2019-07-31 18:11:29 |
| R1.htm | 52193 | 2019-07-31 18:11:29 |
| R10.htm | 366892 | 2019-07-31 18:11:29 |
| R11.htm | 250649 | 2019-07-31 18:11:29 |
| R12.htm | 424373 | 2019-07-31 18:11:29 |
| R13.htm | 678286 | 2019-07-31 18:11:29 |
| R14.htm | 143832 | 2019-07-31 18:11:29 |
| R15.htm | 111261 | 2019-07-31 18:11:29 |
| R16.htm | 45223 | 2019-07-31 18:11:29 |
| R17.htm | 16093 | 2019-07-31 18:11:29 |
| R18.htm | 57809 | 2019-07-31 18:11:29 |
| R19.htm | 67541 | 2019-07-31 18:11:29 |
| R2.htm | 81818 | 2019-07-31 18:11:29 |
| R20.htm | 33110 | 2019-07-31 18:11:29 |
| R21.htm | 7930 | 2019-07-31 18:11:29 |
| R22.htm | 6267 | 2019-07-31 18:11:29 |
| R23.htm | 6971 | 2019-07-31 18:11:29 |
| R24.htm | 98718 | 2019-07-31 18:11:29 |
| R25.htm | 91909 | 2019-07-31 18:11:29 |
| R26.htm | 348361 | 2019-07-31 18:11:29 |
| R27.htm | 256167 | 2019-07-31 18:11:29 |
| R28.htm | 418659 | 2019-07-31 18:11:29 |
| R29.htm | 676973 | 2019-07-31 18:11:29 |
| R3.htm | 15525 | 2019-07-31 18:11:29 |
| R30.htm | 143013 | 2019-07-31 18:11:29 |
| R31.htm | 143620 | 2019-07-31 18:11:29 |
| R32.htm | 38292 | 2019-07-31 18:11:29 |
| R33.htm | 13539 | 2019-07-31 18:11:29 |
| R34.htm | 53658 | 2019-07-31 18:11:29 |
| R35.htm | 67817 | 2019-07-31 18:11:29 |
| R36.htm | 30823 | 2019-07-31 18:11:29 |
| R37.htm | 40562 | 2019-07-31 18:11:29 |
| R38.htm | 41700 | 2019-07-31 18:11:29 |
| R39.htm | 101696 | 2019-07-31 18:11:29 |
| R4.htm | 99566 | 2019-07-31 18:11:29 |
| R40.htm | 25983 | 2019-07-31 18:11:29 |
| R41.htm | 107776 | 2019-07-31 18:11:29 |
| R42.htm | 35749 | 2019-07-31 18:11:29 |
| R43.htm | 60512 | 2019-07-31 18:11:29 |
| R44.htm | 18692 | 2019-07-31 18:11:29 |
| R45.htm | 21083 | 2019-07-31 18:11:29 |
| R46.htm | 50434 | 2019-07-31 18:11:29 |
| R47.htm | 9029 | 2019-07-31 18:11:29 |
| R48.htm | 41491 | 2019-07-31 18:11:29 |
| R49.htm | 37586 | 2019-07-31 18:11:29 |
| R5.htm | 51441 | 2019-07-31 18:11:29 |
| R50.htm | 60029 | 2019-07-31 18:11:29 |
| R51.htm | 101757 | 2019-07-31 18:11:29 |
| R52.htm | 11924 | 2019-07-31 18:11:29 |
| R53.htm | 59634 | 2019-07-31 18:11:29 |
| R54.htm | 37297 | 2019-07-31 18:11:29 |
| R55.htm | 16530 | 2019-07-31 18:11:29 |
| R56.htm | 35218 | 2019-07-31 18:11:29 |
| R57.htm | 77068 | 2019-07-31 18:11:29 |
| R58.htm | 38267 | 2019-07-31 18:11:29 |
| R59.htm | 45928 | 2019-07-31 18:11:29 |
| R6.htm | 15551 | 2019-07-31 18:11:29 |
| R60.htm | 6847 | 2019-07-31 18:11:29 |
| R61.htm | 37533 | 2019-07-31 18:11:29 |
| R62.htm | 55150 | 2019-07-31 18:11:29 |
| R63.htm | 4031 | 2019-07-31 18:11:29 |
| R64.htm | 31922 | 2019-07-31 18:11:29 |
| R65.htm | 36533 | 2019-07-31 18:11:29 |
| R66.htm | 13110 | 2019-07-31 18:11:29 |
| R67.htm | 31610 | 2019-07-31 18:11:29 |
| R68.htm | 24638 | 2019-07-31 18:11:29 |
| R69.htm | 9285 | 2019-07-31 18:11:29 |
| R7.htm | 106864 | 2019-07-31 18:11:29 |
| R70.htm | 23962 | 2019-07-31 18:11:29 |
| R71.htm | 30821 | 2019-07-31 18:11:29 |
| R72.htm | 24826 | 2019-07-31 18:11:29 |
| R73.htm | 13658 | 2019-07-31 18:11:29 |
| R74.htm | 13113 | 2019-07-31 18:11:29 |
| R75.htm | 15657 | 2019-07-31 18:11:29 |
| R76.htm | 13167 | 2019-07-31 18:11:29 |
| R8.htm | 25832 | 2019-07-31 18:11:29 |
| R9.htm | 91786 | 2019-07-31 18:11:29 |
| R9999.htm | 6146 | 2019-07-31 18:11:29 |
| report.css | 2767 | 2019-07-31 18:11:29 |
| Show.js | 1085 | 2019-07-31 18:11:29 |
| stba-20190630.xsd | 63213 | 2019-07-31 18:11:29 |
| stba-20190630_cal.xml | 164571 | 2019-07-31 18:11:29 |
| stba-20190630_def.xml | 422685 | 2019-07-31 18:11:29 |
| stba-20190630_lab.xml | 946191 | 2019-07-31 18:11:29 |
| stba-20190630_pre.xml | 624115 | 2019-07-31 18:11:29 |
| stba-201963010q.htm | 5441937 | 2019-07-31 18:11:29 |
| stba-201963010q_htm.xml | 6839056 | 2019-07-31 18:11:29 |