Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001483798-19-000085-index-headers.html | 2019-05-01 17:17:01 | |
| 0001483798-19-000085-index.html | 2019-05-01 17:17:01 | |
| 0001483798-19-000085.txt | 2019-05-01 17:17:01 | |
 0001483798-19-000085-xbrl.zip | 29397 | 2019-05-01 17:17:01 |
| FilingSummary.xml | 9086 | 2019-05-01 17:17:01 |
| Financial_Report.xlsx | 18663 | 2019-05-01 17:17:01 |
| pbec-20190331.xml | 100477 | 2019-05-01 17:17:01 |
| pbec-20190331.xsd | 10391 | 2019-05-01 17:17:01 |
| pbec-20190331_cal.xml | 33644 | 2019-05-01 17:17:01 |
| pbec-20190331_def.xml | 7581 | 2019-05-01 17:17:01 |
| pbec-20190331_lab.xml | 97153 | 2019-05-01 17:17:01 |
| pbec-20190331_pre.xml | 69710 | 2019-05-01 17:17:01 |
| pbec10q-20190331.htm | 310971 | 2019-05-01 17:17:01 |
| pbec10q-20190331_311.htm | 15004 | 2019-05-01 17:17:01 |
| pbec10q-20190331_312.htm | 13814 | 2019-05-01 17:17:01 |
| pbec10q-20190331_321.htm | 5954 | 2019-05-01 17:17:01 |
| pbec10q-20190331_322.htm | 5894 | 2019-05-01 17:17:01 |
| R1.htm | 25914 | 2019-05-01 17:17:01 |
| R10.htm | 15757 | 2019-05-01 17:17:01 |
| R11.htm | 5159 | 2019-05-01 17:17:01 |
| R12.htm | 19955 | 2019-05-01 17:17:01 |
| R13.htm | 4930 | 2019-05-01 17:17:01 |
| R14.htm | 3922 | 2019-05-01 17:17:01 |
| R2.htm | 47574 | 2019-05-01 17:17:01 |
| R3.htm | 16889 | 2019-05-01 17:17:01 |
| R4.htm | 40715 | 2019-05-01 17:17:01 |
| R5.htm | 54325 | 2019-05-01 17:17:01 |
| R6.htm | 7682 | 2019-05-01 17:17:01 |
| R7.htm | 17813 | 2019-05-01 17:17:01 |
| R8.htm | 17392 | 2019-05-01 17:17:01 |
| R9.htm | 40899 | 2019-05-01 17:17:01 |
| report.css | 2767 | 2019-05-01 17:17:01 |
| Show.js | 1085 | 2019-05-01 17:17:01 |