Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001483798-19-000083-index-headers.html | 2019-05-01 17:09:37 | |
| 0001483798-19-000083-index.html | 2019-05-01 17:09:37 | |
| 0001483798-19-000083.txt | 2019-05-01 17:09:37 | |
 0001483798-19-000083-xbrl.zip | 36864 | 2019-05-01 17:09:37 |
| FilingSummary.xml | 13464 | 2019-05-01 17:09:37 |
| Financial_Report.xlsx | 24876 | 2019-05-01 17:09:37 |
 image2.jpg | 36627 | 2019-05-01 17:09:37 |
| pbec-20181231.xml | 178120 | 2019-05-01 17:09:37 |
| pbec-20181231.xsd | 13315 | 2019-05-01 17:09:37 |
| pbec-20181231_cal.xml | 39513 | 2019-05-01 17:09:37 |
| pbec-20181231_def.xml | 27434 | 2019-05-01 17:09:37 |
| pbec-20181231_lab.xml | 119373 | 2019-05-01 17:09:37 |
| pbec-20181231_pre.xml | 91832 | 2019-05-01 17:09:37 |
| pbec10k-20181231.htm | 548584 | 2019-05-01 17:09:37 |
| pbec10k-20181231_311.htm | 14666 | 2019-05-01 17:09:37 |
| pbec10k-20181231_312.htm | 13894 | 2019-05-01 17:09:37 |
| pbec10k-20181231_321.htm | 5963 | 2019-05-01 17:09:37 |
| pbec10k-20181231_322.htm | 5922 | 2019-05-01 17:09:37 |
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| R8.htm | 16262 | 2019-05-01 17:09:37 |
| R9.htm | 17393 | 2019-05-01 17:09:37 |
| report.css | 2767 | 2019-05-01 17:09:37 |
| Show.js | 1085 | 2019-05-01 17:09:37 |