Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000924168-23-000057-index-headers.html | 2023-05-11 08:18:26 | |
| 0000924168-23-000057-index.html | 2023-05-11 08:18:26 | |
| 0000924168-23-000057.txt | 2023-05-11 08:18:26 | |
 0000924168-23-000057-xbrl.zip | 30144 | 2023-05-11 08:18:26 |
| efoi-20230511.htm | 37490 | 2023-05-11 08:18:26 |
| efoi-20230511.xsd | 2174 | 2023-05-11 08:18:26 |
| efoi-20230511_def.xml | 4359 | 2023-05-11 08:18:26 |
| efoi-20230511_htm.xml | 11415 | 2023-05-11 08:18:26 |
| efoi-20230511_lab.xml | 26813 | 2023-05-11 08:18:26 |
| efoi-20230511_pre.xml | 15788 | 2023-05-11 08:18:26 |
 ef_logoxtaglinelockupxcmyk.jpg | 29341 | 2023-05-11 08:18:26 |
| ex991efoi1q2023earningsrel.htm | 287753 | 2023-05-11 08:18:26 |
| FilingSummary.xml | 1913 | 2023-05-11 08:18:26 |
| Financial_Report.xlsx | 5761 | 2023-05-11 08:18:26 |
| MetaLinks.json | 18968 | 2023-05-11 08:18:26 |
| R1.htm | 40638 | 2023-05-11 08:18:26 |
| report.css | 2767 | 2023-05-11 08:18:26 |
| Show.js | 1085 | 2023-05-11 08:18:26 |