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|---|---|---|
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| 0000924168-20-000086-index.html | 2020-11-12 08:33:31 | |
| 0000924168-20-000086.txt | 2020-11-12 08:33:31 | |
 0000924168-20-000086-xbrl.zip | 31458 | 2020-11-12 08:33:31 |
| efoi-20201112.htm | 38982 | 2020-11-12 08:33:31 |
| efoi-20201112.xsd | 2441 | 2020-11-12 08:33:31 |
| efoi-20201112_cal.xml | 722 | 2020-11-12 08:33:31 |
| efoi-20201112_def.xml | 4395 | 2020-11-12 08:33:31 |
| efoi-20201112_htm.xml | 11683 | 2020-11-12 08:33:31 |
| efoi-20201112_lab.xml | 26969 | 2020-11-12 08:33:31 |
| efoi-20201112_pre.xml | 15962 | 2020-11-12 08:33:31 |
 ef_logoxtaglinelockupxcmyka.jpg | 29341 | 2020-11-12 08:33:31 |
| ex991efoi3q2020earning.htm | 271691 | 2020-11-12 08:33:31 |
| FilingSummary.xml | 1727 | 2020-11-12 08:33:31 |
| Financial_Report.xlsx | 5538 | 2020-11-12 08:33:31 |
| MetaLinks.json | 19141 | 2020-11-12 08:33:31 |
| R1.htm | 42495 | 2020-11-12 08:33:31 |
| report.css | 2767 | 2020-11-12 08:33:31 |
| Show.js | 1085 | 2020-11-12 08:33:31 |