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| 0000924168-16-000015-index.html | 2016-03-10 08:56:35 | |
| 0000924168-16-000015.txt | 2016-03-10 08:56:35 | |
 0000924168-16-000015-xbrl.zip | 264139 | 2016-03-10 08:56:35 |
| efoi-20151231.xml | 1981832 | 2016-03-10 08:56:35 |
| efoi-20151231.xsd | 55146 | 2016-03-10 08:56:35 |
| efoi-20151231_cal.xml | 111660 | 2016-03-10 08:56:35 |
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| efoi-20151231_pre.xml | 528812 | 2016-03-10 08:56:35 |
| efoi2015123110k.htm | 1833468 | 2016-03-10 08:56:35 |
| exhibit211.htm | 851 | 2016-03-10 08:56:35 |
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| exhibit311.htm | 4040 | 2016-03-10 08:56:35 |
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| exhibit321.htm | 1984 | 2016-03-10 08:56:35 |
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| report.css | 2768 | 2016-03-10 08:56:35 |
| Show.js | 1411 | 2016-03-10 08:56:35 |