Parent Directory| Name | Size | Last Modified |
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| 0001483798-19-000058-index.html | 2019-05-01 12:58:13 | |
| 0001483798-19-000058.txt | 2019-05-01 12:58:13 | |
 0001483798-19-000058-xbrl.zip | 36850 | 2019-05-01 12:58:13 |
| FilingSummary.xml | 13464 | 2019-05-01 12:58:13 |
| Financial_Report.xlsx | 24860 | 2019-05-01 12:58:13 |
 image2.jpg | 36627 | 2019-05-01 12:58:13 |
| pbec-20161231.xml | 178120 | 2019-05-01 12:58:13 |
| pbec-20161231.xsd | 13315 | 2019-05-01 12:58:13 |
| pbec-20161231_cal.xml | 39513 | 2019-05-01 12:58:13 |
| pbec-20161231_def.xml | 27434 | 2019-05-01 12:58:13 |
| pbec-20161231_lab.xml | 119373 | 2019-05-01 12:58:13 |
| pbec-20161231_pre.xml | 91832 | 2019-05-01 12:58:13 |
| pbec10k-20161231.htm | 548991 | 2019-05-01 12:58:13 |
| pbec10k-20161231_311.htm | 14666 | 2019-05-01 12:58:13 |
| pbec10k-20161231_312.htm | 13894 | 2019-05-01 12:58:13 |
| pbec10k-20161231_321.htm | 5963 | 2019-05-01 12:58:13 |
| pbec10k-20161231_322.htm | 5896 | 2019-05-01 12:58:13 |
| R1.htm | 33017 | 2019-05-01 12:58:13 |
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| R2.htm | 47574 | 2019-05-01 12:58:13 |
| R20.htm | 12580 | 2019-05-01 12:58:13 |
| R21.htm | 8804 | 2019-05-01 12:58:13 |
| R22.htm | 6797 | 2019-05-01 12:58:13 |
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| R8.htm | 16262 | 2019-05-01 12:58:13 |
| R9.htm | 17393 | 2019-05-01 12:58:13 |
| report.css | 2767 | 2019-05-01 12:58:13 |
| Show.js | 1085 | 2019-05-01 12:58:13 |