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| 0001437749-18-014392-index.html | 2018-08-03 11:20:59 | |
| 0001437749-18-014392.txt | 2018-08-03 11:20:59 | |
 0001437749-18-014392-xbrl.zip | 95754 | 2018-08-03 11:20:59 |
| ex_118293.htm | 12996 | 2018-08-03 11:20:59 |
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| ex_118295.htm | 5560 | 2018-08-03 11:20:59 |
| FilingSummary.xml | 29197 | 2018-08-03 11:20:59 |
| Financial_Report.xlsx | 47732 | 2018-08-03 11:20:59 |
| ptsi-20180630.xml | 616182 | 2018-08-03 11:20:59 |
| ptsi-20180630.xsd | 44369 | 2018-08-03 11:20:59 |
| ptsi-20180630_cal.xml | 41408 | 2018-08-03 11:20:59 |
| ptsi-20180630_def.xml | 312259 | 2018-08-03 11:20:59 |
| ptsi-20180630_lab.xml | 285245 | 2018-08-03 11:20:59 |
| ptsi-20180630_pre.xml | 336520 | 2018-08-03 11:20:59 |
| ptsi20180630_10q.htm | 707709 | 2018-08-03 11:20:59 |
 ptsi20180630_10qimg001.jpg | 7552 | 2018-08-03 11:20:59 |
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| report.css | 2767 | 2018-08-03 11:20:59 |
| Show.js | 1410 | 2018-08-03 11:20:59 |