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| 0000277638-18-000013-index.html | 2018-05-04 15:56:39 | |
| 0000277638-18-000013.txt | 2018-05-04 15:56:39 | |
 0000277638-18-000013-xbrl.zip | 200737 | 2018-05-04 15:56:39 |
| davey-20180331.xml | 1569354 | 2018-05-04 15:56:39 |
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| davey-20180331_cal.xml | 89159 | 2018-05-04 15:56:39 |
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| davey-20180331_lab.xml | 708614 | 2018-05-04 15:56:39 |
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| dt2018q110qex311.htm | 14860 | 2018-05-04 15:56:39 |
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| dt2018q110qex321.htm | 7485 | 2018-05-04 15:56:39 |
| dt2018q110qex322.htm | 7418 | 2018-05-04 15:56:39 |
 dt2018q1davlogsma01a01a01a05.jpg | 4668 | 2018-05-04 15:56:39 |
| FilingSummary.xml | 33764 | 2018-05-04 15:56:39 |
| Financial_Report.xlsx | 71370 | 2018-05-04 15:56:39 |
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| report.css | 2767 | 2018-05-04 15:56:39 |
| Show.js | 1410 | 2018-05-04 15:56:39 |