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| 0000924168-22-000049-index.html | 2022-06-06 16:47:52 | |
| 0000924168-22-000049.txt | 2022-06-06 16:47:52 | |
 0000924168-22-000049-xbrl.zip | 100016 | 2022-06-06 16:47:52 |
| a2022068-kex41formofwarrant.htm | 119745 | 2022-06-06 16:47:52 |
| a202206ex101securitiespurc.htm | 283314 | 2022-06-06 16:47:52 |
| a202206ex102registrationri.htm | 152796 | 2022-06-06 16:47:52 |
| a202206ex991pressrelease.htm | 20420 | 2022-06-06 16:47:52 |
| efoi-20210603.htm | 53931 | 2022-06-06 16:47:52 |
| efoi-20210603.xsd | 1920 | 2022-06-06 16:47:52 |
| efoi-20210603_htm.xml | 10834 | 2022-06-06 16:47:52 |
| efoi-20210603_lab.xml | 23832 | 2022-06-06 16:47:52 |
| efoi-20210603_pre.xml | 12520 | 2022-06-06 16:47:52 |
 ef_logoxtaglinelockupxcmyk.jpg | 29341 | 2022-06-06 16:47:52 |
| FilingSummary.xml | 1802 | 2022-06-06 16:47:52 |
| Financial_Report.xlsx | 5674 | 2022-06-06 16:47:52 |
| MetaLinks.json | 16644 | 2022-06-06 16:47:52 |
| R1.htm | 38714 | 2022-06-06 16:47:52 |
| report.css | 2767 | 2022-06-06 16:47:52 |
| Show.js | 1085 | 2022-06-06 16:47:52 |