Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000924168-20-000033-index-headers.html | 2020-05-13 17:18:11 | |
| 0000924168-20-000033-index.html | 2020-05-13 17:18:11 | |
| 0000924168-20-000033.txt | 2020-05-13 17:18:11 | |
 0000924168-20-000033-xbrl.zip | 254522 | 2020-05-13 17:18:11 |
| a20200331exhibit31110-q.htm | 10879 | 2020-05-13 17:18:11 |
| a20200331exhibit31210-q.htm | 10984 | 2020-05-13 17:18:11 |
| a20200331exhibit32110-q.htm | 11123 | 2020-05-13 17:18:11 |
| efoi-20200331.htm | 1468983 | 2020-05-13 17:18:11 |
| efoi-20200331.xsd | 44972 | 2020-05-13 17:18:11 |
| efoi-20200331_cal.xml | 88459 | 2020-05-13 17:18:11 |
| efoi-20200331_def.xml | 216492 | 2020-05-13 17:18:11 |
| efoi-20200331_htm.xml | 1172490 | 2020-05-13 17:18:11 |
| efoi-20200331_lab.xml | 605567 | 2020-05-13 17:18:11 |
| efoi-20200331_pre.xml | 408237 | 2020-05-13 17:18:11 |
| exhibit10220200417care.htm | 87481 | 2020-05-13 17:18:11 |
| FilingSummary.xml | 32476 | 2020-05-13 17:18:11 |
| Financial_Report.xlsx | 68811 | 2020-05-13 17:18:11 |
 image1.jpg | 17263 | 2020-05-13 17:18:11 |
 image2.jpg | 2351 | 2020-05-13 17:18:11 |
| MetaLinks.json | 554609 | 2020-05-13 17:18:11 |
| R1.htm | 53803 | 2020-05-13 17:18:11 |
| R10.htm | 28390 | 2020-05-13 17:18:11 |
| R11.htm | 14505 | 2020-05-13 17:18:11 |
| R12.htm | 27236 | 2020-05-13 17:18:11 |
| R13.htm | 111103 | 2020-05-13 17:18:11 |
| R14.htm | 15846 | 2020-05-13 17:18:11 |
| R15.htm | 7359 | 2020-05-13 17:18:11 |
| R16.htm | 83382 | 2020-05-13 17:18:11 |
| R17.htm | 5119 | 2020-05-13 17:18:11 |
| R18.htm | 5984 | 2020-05-13 17:18:11 |
| R19.htm | 36073 | 2020-05-13 17:18:11 |
| R2.htm | 21771 | 2020-05-13 17:18:11 |
| R20.htm | 68312 | 2020-05-13 17:18:11 |
| R21.htm | 16067 | 2020-05-13 17:18:11 |
| R22.htm | 15522 | 2020-05-13 17:18:11 |
| R23.htm | 27067 | 2020-05-13 17:18:11 |
| R24.htm | 141980 | 2020-05-13 17:18:11 |
| R25.htm | 83445 | 2020-05-13 17:18:11 |
| R26.htm | 70047 | 2020-05-13 17:18:11 |
| R27.htm | 9830 | 2020-05-13 17:18:11 |
| R28.htm | 13239 | 2020-05-13 17:18:11 |
| R29.htm | 12039 | 2020-05-13 17:18:11 |
| R3.htm | 40537 | 2020-05-13 17:18:11 |
| R30.htm | 11742 | 2020-05-13 17:18:11 |
| R31.htm | 8970 | 2020-05-13 17:18:11 |
| R32.htm | 18230 | 2020-05-13 17:18:11 |
| R33.htm | 9596 | 2020-05-13 17:18:11 |
| R34.htm | 18367 | 2020-05-13 17:18:11 |
| R35.htm | 11161 | 2020-05-13 17:18:11 |
| R36.htm | 39872 | 2020-05-13 17:18:11 |
| R37.htm | 16886 | 2020-05-13 17:18:11 |
| R38.htm | 18736 | 2020-05-13 17:18:11 |
| R39.htm | 21589 | 2020-05-13 17:18:11 |
| R4.htm | 13317 | 2020-05-13 17:18:11 |
| R40.htm | 62714 | 2020-05-13 17:18:11 |
| R41.htm | 8543 | 2020-05-13 17:18:11 |
| R42.htm | 104580 | 2020-05-13 17:18:11 |
| R43.htm | 14829 | 2020-05-13 17:18:11 |
| R44.htm | 22742 | 2020-05-13 17:18:11 |
| R45.htm | 30171 | 2020-05-13 17:18:11 |
| R46.htm | 11619 | 2020-05-13 17:18:11 |
| R47.htm | 16460 | 2020-05-13 17:18:11 |
| R48.htm | 57007 | 2020-05-13 17:18:11 |
| R49.htm | 31638 | 2020-05-13 17:18:11 |
| R5.htm | 45451 | 2020-05-13 17:18:11 |
| R50.htm | 5907 | 2020-05-13 17:18:11 |
| R51.htm | 8439 | 2020-05-13 17:18:11 |
| R6.htm | 75873 | 2020-05-13 17:18:11 |
| R7.htm | 99288 | 2020-05-13 17:18:11 |
| R8.htm | 6187 | 2020-05-13 17:18:11 |
| R9.htm | 91275 | 2020-05-13 17:18:11 |
| R9999.htm | 4622 | 2020-05-13 17:18:11 |
| report.css | 2767 | 2020-05-13 17:18:11 |
| Show.js | 1085 | 2020-05-13 17:18:11 |