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| 0001564590-16-015102-index.html | 2016-03-21 16:34:30 | |
| 0001564590-16-015102.txt | 2016-03-21 16:34:30 | |
 0001564590-16-015102-xbrl.zip | 134481 | 2016-03-21 16:34:30 |
| FilingSummary.xml | 34881 | 2016-03-21 16:34:30 |
| Financial_Report.xlsx | 71866 | 2016-03-21 16:34:30 |
| pwx-10k_20151231.htm | 1922633 | 2016-03-21 16:34:30 |
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| report.css | 2767 | 2016-03-21 16:34:30 |
| Show.js | 1410 | 2016-03-21 16:34:30 |