Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000924168-21-000024-index-headers.html | 2021-04-28 16:37:25 | |
| 0000924168-21-000024-index.html | 2021-04-28 16:37:25 | |
| 0000924168-21-000024.txt | 2021-04-28 16:37:25 | |
 0000924168-21-000024-xbrl.zip | 45532 | 2021-04-28 16:37:25 |
| a202104ex101notepurchaseag.htm | 145305 | 2021-04-28 16:37:25 |
| a202104ex102promissorynote.htm | 57394 | 2021-04-28 16:37:25 |
| efoi-20210427.htm | 44903 | 2021-04-28 16:37:25 |
| efoi-20210427.xsd | 2441 | 2021-04-28 16:37:25 |
| efoi-20210427_cal.xml | 722 | 2021-04-28 16:37:25 |
| efoi-20210427_def.xml | 1655 | 2021-04-28 16:37:25 |
| efoi-20210427_htm.xml | 10779 | 2021-04-28 16:37:25 |
| efoi-20210427_lab.xml | 23970 | 2021-04-28 16:37:25 |
| efoi-20210427_pre.xml | 12658 | 2021-04-28 16:37:25 |
| FilingSummary.xml | 1779 | 2021-04-28 16:37:25 |
| Financial_Report.xlsx | 5669 | 2021-04-28 16:37:25 |
| MetaLinks.json | 17385 | 2021-04-28 16:37:25 |
| R1.htm | 38619 | 2021-04-28 16:37:25 |
| report.css | 2767 | 2021-04-28 16:37:25 |
| Show.js | 1085 | 2021-04-28 16:37:25 |