Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000080420-17-000032-index-headers.html | 2017-12-06 15:20:04 | |
| 0000080420-17-000032-index.html | 2017-12-06 15:20:04 | |
| 0000080420-17-000032.txt | 2017-12-06 15:20:04 | |
 0000080420-17-000032-xbrl.zip | 226066 | 2017-12-06 15:20:04 |
 capture.jpg | 68010 | 2017-12-06 15:20:04 |
| exhibit21110k2017.htm | 11695 | 2017-12-06 15:20:04 |
| exhibit2312017.htm | 2933 | 2017-12-06 15:20:04 |
| exhibit31110k2017.htm | 10774 | 2017-12-06 15:20:04 |
| exhibit31210k2017.htm | 11240 | 2017-12-06 15:20:04 |
| exhibit32110k2017.htm | 5913 | 2017-12-06 15:20:04 |
| exhibit32210k2017.htm | 6425 | 2017-12-06 15:20:04 |
| FilingSummary.xml | 43952 | 2017-12-06 15:20:04 |
| Financial_Report.xlsx | 94193 | 2017-12-06 15:20:04 |
| powl-20170930.xml | 1515512 | 2017-12-06 15:20:04 |
| powl-20170930.xsd | 55445 | 2017-12-06 15:20:04 |
| powl-20170930_cal.xml | 125107 | 2017-12-06 15:20:04 |
| powl-20170930_def.xml | 210507 | 2017-12-06 15:20:04 |
| powl-20170930_lab.xml | 780130 | 2017-12-06 15:20:04 |
| powl-20170930_pre.xml | 451724 | 2017-12-06 15:20:04 |
| powl10-k2017.htm | 1588499 | 2017-12-06 15:20:04 |
| R1.htm | 29977 | 2017-12-06 15:20:04 |
| R10.htm | 49596 | 2017-12-06 15:20:04 |
| R11.htm | 33310 | 2017-12-06 15:20:04 |
| R12.htm | 81343 | 2017-12-06 15:20:04 |
| R13.htm | 32191 | 2017-12-06 15:20:04 |
| R14.htm | 29526 | 2017-12-06 15:20:04 |
| R15.htm | 35563 | 2017-12-06 15:20:04 |
| R16.htm | 158415 | 2017-12-06 15:20:04 |
| R17.htm | 13377 | 2017-12-06 15:20:04 |
| R18.htm | 29367 | 2017-12-06 15:20:04 |
| R19.htm | 57557 | 2017-12-06 15:20:04 |
| R2.htm | 112555 | 2017-12-06 15:20:04 |
| R20.htm | 40344 | 2017-12-06 15:20:04 |
| R21.htm | 9234 | 2017-12-06 15:20:04 |
| R22.htm | 5430 | 2017-12-06 15:20:04 |
| R23.htm | 64659 | 2017-12-06 15:20:04 |
| R24.htm | 5006 | 2017-12-06 15:20:04 |
| R25.htm | 76541 | 2017-12-06 15:20:04 |
| R26.htm | 16047 | 2017-12-06 15:20:04 |
| R27.htm | 31329 | 2017-12-06 15:20:04 |
| R28.htm | 88662 | 2017-12-06 15:20:04 |
| R29.htm | 26417 | 2017-12-06 15:20:04 |
| R3.htm | 19368 | 2017-12-06 15:20:04 |
| R30.htm | 24617 | 2017-12-06 15:20:04 |
| R31.htm | 29042 | 2017-12-06 15:20:04 |
| R32.htm | 160749 | 2017-12-06 15:20:04 |
| R33.htm | 15541 | 2017-12-06 15:20:04 |
| R34.htm | 49644 | 2017-12-06 15:20:04 |
| R35.htm | 38047 | 2017-12-06 15:20:04 |
| R36.htm | 63445 | 2017-12-06 15:20:04 |
| R37.htm | 8843 | 2017-12-06 15:20:04 |
| R38.htm | 15073 | 2017-12-06 15:20:04 |
| R39.htm | 26857 | 2017-12-06 15:20:04 |
| R4.htm | 53853 | 2017-12-06 15:20:04 |
| R40.htm | 11524 | 2017-12-06 15:20:04 |
| R41.htm | 11852 | 2017-12-06 15:20:04 |
| R42.htm | 20335 | 2017-12-06 15:20:04 |
| R43.htm | 31070 | 2017-12-06 15:20:04 |
| R44.htm | 9942 | 2017-12-06 15:20:04 |
| R45.htm | 12133 | 2017-12-06 15:20:04 |
| R46.htm | 36259 | 2017-12-06 15:20:04 |
| R47.htm | 9779 | 2017-12-06 15:20:04 |
| R48.htm | 13376 | 2017-12-06 15:20:04 |
| R49.htm | 9035 | 2017-12-06 15:20:04 |
| R5.htm | 13890 | 2017-12-06 15:20:04 |
| R50.htm | 17689 | 2017-12-06 15:20:04 |
| R51.htm | 47732 | 2017-12-06 15:20:04 |
| R52.htm | 33459 | 2017-12-06 15:20:04 |
| R53.htm | 6743 | 2017-12-06 15:20:04 |
| R54.htm | 24676 | 2017-12-06 15:20:04 |
| R55.htm | 27591 | 2017-12-06 15:20:04 |
| R56.htm | 10068 | 2017-12-06 15:20:04 |
| R57.htm | 25092 | 2017-12-06 15:20:04 |
| R58.htm | 26137 | 2017-12-06 15:20:04 |
| R59.htm | 19665 | 2017-12-06 15:20:04 |
| R6.htm | 62251 | 2017-12-06 15:20:04 |
| R60.htm | 44972 | 2017-12-06 15:20:04 |
| R61.htm | 10028 | 2017-12-06 15:20:04 |
| R62.htm | 14186 | 2017-12-06 15:20:04 |
| R63.htm | 41776 | 2017-12-06 15:20:04 |
| R64.htm | 62889 | 2017-12-06 15:20:04 |
| R65.htm | 24901 | 2017-12-06 15:20:04 |
| R66.htm | 25319 | 2017-12-06 15:20:04 |
| R67.htm | 18207 | 2017-12-06 15:20:04 |
| R68.htm | 11962 | 2017-12-06 15:20:04 |
| R69.htm | 21573 | 2017-12-06 15:20:04 |
| R7.htm | 5122 | 2017-12-06 15:20:04 |
| R70.htm | 15797 | 2017-12-06 15:20:04 |
| R71.htm | 21014 | 2017-12-06 15:20:04 |
| R72.htm | 7356 | 2017-12-06 15:20:04 |
| R8.htm | 86358 | 2017-12-06 15:20:04 |
| R9.htm | 8878 | 2017-12-06 15:20:04 |
| report.css | 2767 | 2017-12-06 15:20:04 |
| Show.js | 1410 | 2017-12-06 15:20:04 |