Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001289636-20-000021-index-headers.html | 2020-05-06 16:15:12 | |
| 0001289636-20-000021-index.html | 2020-05-06 16:15:12 | |
| 0001289636-20-000021.txt | 2020-05-06 16:15:12 | |
 0001289636-20-000021-xbrl.zip | 165662 | 2020-05-06 16:15:12 |
| a2020-q1x311ceorule13a.htm | 16623 | 2020-05-06 16:15:12 |
| a2020-q1x312cforule13a.htm | 16599 | 2020-05-06 16:15:12 |
| a2020-q1x321ceosoxcert.htm | 9173 | 2020-05-06 16:15:12 |
| a2020-q1x322cfosoxcert.htm | 9167 | 2020-05-06 16:15:12 |
| FilingSummary.xml | 22913 | 2020-05-06 16:15:12 |
| Financial_Report.xlsx | 44483 | 2020-05-06 16:15:12 |
| MetaLinks.json | 386945 | 2020-05-06 16:15:12 |
| pfie-20200331.htm | 1007672 | 2020-05-06 16:15:12 |
| pfie-20200331.xsd | 26365 | 2020-05-06 16:15:12 |
| pfie-20200331_cal.xml | 80287 | 2020-05-06 16:15:12 |
| pfie-20200331_def.xml | 119609 | 2020-05-06 16:15:12 |
| pfie-20200331_htm.xml | 661173 | 2020-05-06 16:15:12 |
| pfie-20200331_lab.xml | 388757 | 2020-05-06 16:15:12 |
| pfie-20200331_pre.xml | 243479 | 2020-05-06 16:15:12 |
| R1.htm | 52200 | 2020-05-06 16:15:12 |
| R10.htm | 18838 | 2020-05-06 16:15:12 |
| R11.htm | 14151 | 2020-05-06 16:15:12 |
| R12.htm | 36072 | 2020-05-06 16:15:12 |
| R13.htm | 8214 | 2020-05-06 16:15:12 |
| R14.htm | 38384 | 2020-05-06 16:15:12 |
| R15.htm | 26845 | 2020-05-06 16:15:12 |
| R16.htm | 36775 | 2020-05-06 16:15:12 |
| R17.htm | 6406 | 2020-05-06 16:15:12 |
| R18.htm | 12863 | 2020-05-06 16:15:12 |
| R19.htm | 19714 | 2020-05-06 16:15:12 |
| R2.htm | 101730 | 2020-05-06 16:15:12 |
| R20.htm | 18471 | 2020-05-06 16:15:12 |
| R21.htm | 36706 | 2020-05-06 16:15:12 |
| R22.htm | 18612 | 2020-05-06 16:15:12 |
| R23.htm | 38718 | 2020-05-06 16:15:12 |
| R24.htm | 27417 | 2020-05-06 16:15:12 |
| R25.htm | 30065 | 2020-05-06 16:15:12 |
| R26.htm | 6479 | 2020-05-06 16:15:12 |
| R27.htm | 15412 | 2020-05-06 16:15:12 |
| R28.htm | 14307 | 2020-05-06 16:15:12 |
| R29.htm | 89355 | 2020-05-06 16:15:12 |
| R3.htm | 19108 | 2020-05-06 16:15:12 |
| R30.htm | 16789 | 2020-05-06 16:15:12 |
| R31.htm | 19856 | 2020-05-06 16:15:12 |
| R32.htm | 34678 | 2020-05-06 16:15:12 |
| R33.htm | 10851 | 2020-05-06 16:15:12 |
| R34.htm | 9245 | 2020-05-06 16:15:12 |
| R35.htm | 24164 | 2020-05-06 16:15:12 |
| R36.htm | 30511 | 2020-05-06 16:15:12 |
| R37.htm | 41760 | 2020-05-06 16:15:12 |
| R38.htm | 9474 | 2020-05-06 16:15:12 |
| R4.htm | 72347 | 2020-05-06 16:15:12 |
| R5.htm | 73683 | 2020-05-06 16:15:12 |
| R6.htm | 49062 | 2020-05-06 16:15:12 |
| R7.htm | 7219 | 2020-05-06 16:15:12 |
| R8.htm | 7851 | 2020-05-06 16:15:12 |
| R9.htm | 18698 | 2020-05-06 16:15:12 |
| report.css | 2767 | 2020-05-06 16:15:12 |
| Show.js | 1085 | 2020-05-06 16:15:12 |