Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000924168-22-000087-index-headers.html | 2022-11-10 08:15:56 | |
| 0000924168-22-000087-index.html | 2022-11-10 08:15:56 | |
| 0000924168-22-000087.txt | 2022-11-10 08:15:56 | |
 0000924168-22-000087-xbrl.zip | 33110 | 2022-11-10 08:15:56 |
| efoi-20221110.htm | 37597 | 2022-11-10 08:15:56 |
| efoi-20221110.xsd | 2174 | 2022-11-10 08:15:56 |
| efoi-20221110_def.xml | 4359 | 2022-11-10 08:15:56 |
| efoi-20221110_htm.xml | 11389 | 2022-11-10 08:15:56 |
| efoi-20221110_lab.xml | 26813 | 2022-11-10 08:15:56 |
| efoi-20221110_pre.xml | 15788 | 2022-11-10 08:15:56 |
 ef_logoxtaglinelockupxcmyk.jpg | 29341 | 2022-11-10 08:15:56 |
| ex991efoi3q2022earningsrel.htm | 354533 | 2022-11-10 08:15:56 |
| FilingSummary.xml | 1915 | 2022-11-10 08:15:56 |
| Financial_Report.xlsx | 5762 | 2022-11-10 08:15:56 |
| MetaLinks.json | 18466 | 2022-11-10 08:15:56 |
| R1.htm | 40650 | 2022-11-10 08:15:56 |
| report.css | 2767 | 2022-11-10 08:15:56 |
| Show.js | 1085 | 2022-11-10 08:15:56 |