Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000080420-19-000013-index-headers.html | 2019-05-08 14:48:27 | |
| 0000080420-19-000013-index.html | 2019-05-08 14:48:27 | |
| 0000080420-19-000013.txt | 2019-05-08 14:48:27 | |
 0000080420-19-000013-xbrl.zip | 129785 | 2019-05-08 14:48:27 |
| FilingSummary.xml | 25477 | 2019-05-08 14:48:27 |
| Financial_Report.xlsx | 58054 | 2019-05-08 14:48:27 |
| powl-20190331.xml | 769300 | 2019-05-08 14:48:27 |
| powl-20190331.xsd | 30038 | 2019-05-08 14:48:27 |
| powl-20190331_cal.xml | 61845 | 2019-05-08 14:48:27 |
| powl-20190331_def.xml | 110750 | 2019-05-08 14:48:27 |
| powl-20190331_lab.xml | 432561 | 2019-05-08 14:48:27 |
| powl-20190331_pre.xml | 245751 | 2019-05-08 14:48:27 |
| powl10-qq22019.htm | 818611 | 2019-05-08 14:48:27 |
| powlexhibit311q22019.htm | 13257 | 2019-05-08 14:48:27 |
| powlexhibit312q22019.htm | 13430 | 2019-05-08 14:48:27 |
| powlexhibit321q22019.htm | 5865 | 2019-05-08 14:48:27 |
| powlexhibit322q22019.htm | 5926 | 2019-05-08 14:48:27 |
| R1.htm | 25618 | 2019-05-08 14:48:27 |
| R10.htm | 58027 | 2019-05-08 14:48:27 |
| R11.htm | 56955 | 2019-05-08 14:48:27 |
| R12.htm | 20607 | 2019-05-08 14:48:27 |
| R13.htm | 8926 | 2019-05-08 14:48:27 |
| R14.htm | 21534 | 2019-05-08 14:48:27 |
| R15.htm | 60629 | 2019-05-08 14:48:27 |
| R16.htm | 33923 | 2019-05-08 14:48:27 |
| R17.htm | 5139 | 2019-05-08 14:48:27 |
| R18.htm | 35801 | 2019-05-08 14:48:27 |
| R19.htm | 38031 | 2019-05-08 14:48:27 |
| R2.htm | 98569 | 2019-05-08 14:48:27 |
| R20.htm | 62795 | 2019-05-08 14:48:27 |
| R21.htm | 39307 | 2019-05-08 14:48:27 |
| R22.htm | 15004 | 2019-05-08 14:48:27 |
| R23.htm | 15138 | 2019-05-08 14:48:27 |
| R24.htm | 53489 | 2019-05-08 14:48:27 |
| R25.htm | 31213 | 2019-05-08 14:48:27 |
| R26.htm | 26705 | 2019-05-08 14:48:27 |
| R27.htm | 11811 | 2019-05-08 14:48:27 |
| R28.htm | 9784 | 2019-05-08 14:48:27 |
| R29.htm | 12671 | 2019-05-08 14:48:27 |
| R3.htm | 19359 | 2019-05-08 14:48:27 |
| R30.htm | 8429 | 2019-05-08 14:48:27 |
| R31.htm | 10506 | 2019-05-08 14:48:27 |
| R32.htm | 16315 | 2019-05-08 14:48:27 |
| R33.htm | 28189 | 2019-05-08 14:48:27 |
| R34.htm | 9314 | 2019-05-08 14:48:27 |
| R35.htm | 44143 | 2019-05-08 14:48:27 |
| R36.htm | 18879 | 2019-05-08 14:48:27 |
| R37.htm | 33422 | 2019-05-08 14:48:27 |
| R38.htm | 26347 | 2019-05-08 14:48:27 |
| R39.htm | 23680 | 2019-05-08 14:48:27 |
| R4.htm | 56312 | 2019-05-08 14:48:27 |
| R40.htm | 15737 | 2019-05-08 14:48:27 |
| R41.htm | 10796 | 2019-05-08 14:48:27 |
| R42.htm | 7657 | 2019-05-08 14:48:27 |
| R5.htm | 12000 | 2019-05-08 14:48:27 |
| R6.htm | 57662 | 2019-05-08 14:48:27 |
| R7.htm | 69027 | 2019-05-08 14:48:27 |
| R8.htm | 16808 | 2019-05-08 14:48:27 |
| R9.htm | 39279 | 2019-05-08 14:48:27 |
| report.css | 2767 | 2019-05-08 14:48:27 |
| Show.js | 1085 | 2019-05-08 14:48:27 |