Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001654954-21-006715-index-headers.html | 2021-06-09 16:01:03 | |
| 0001654954-21-006715-index.html | 2021-06-09 16:01:03 | |
| 0001654954-21-006715.txt | 2021-06-09 16:01:03 | |
 0001654954-21-006715-xbrl.zip | 22865 | 2021-06-09 16:01:03 |
| FilingSummary.xml | 1725 | 2021-06-09 16:01:03 |
| Financial_Report.xlsx | 5677 | 2021-06-09 16:01:03 |
| lake-20211231.htm | 33134 | 2021-06-09 16:01:03 |
| lake-20211231.xsd | 3017 | 2021-06-09 16:01:03 |
| lake-20211231_cal.xml | 872 | 2021-06-09 16:01:03 |
| lake-20211231_def.xml | 1871 | 2021-06-09 16:01:03 |
| lake-20211231_htm.xml | 4138 | 2021-06-09 16:01:03 |
| lake-20211231_lab.xml | 15310 | 2021-06-09 16:01:03 |
| lake-20211231_pre.xml | 11158 | 2021-06-09 16:01:03 |
| lake_ex991.htm | 211689 | 2021-06-09 16:01:03 |
 lake_ex991000.jpg | 2394 | 2021-06-09 16:01:03 |
| MetaLinks.json | 17482 | 2021-06-09 16:01:03 |
| R1.htm | 38751 | 2021-06-09 16:01:03 |
| report.css | 2767 | 2021-06-09 16:01:03 |
| Show.js | 1085 | 2021-06-09 16:01:03 |