Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001654954-20-013389-index-headers.html | 2020-12-10 16:01:36 | |
| 0001654954-20-013389-index.html | 2020-12-10 16:01:36 | |
| 0001654954-20-013389.txt | 2020-12-10 16:01:36 | |
 0001654954-20-013389-xbrl.zip | 25920 | 2020-12-10 16:01:36 |
| FilingSummary.xml | 1725 | 2020-12-10 16:01:36 |
| Financial_Report.xlsx | 5476 | 2020-12-10 16:01:36 |
| lake-20201231.htm | 33104 | 2020-12-10 16:01:36 |
| lake-20201231.xsd | 3019 | 2020-12-10 16:01:36 |
| lake-20201231_cal.xml | 874 | 2020-12-10 16:01:36 |
| lake-20201231_def.xml | 1873 | 2020-12-10 16:01:36 |
| lake-20201231_htm.xml | 4140 | 2020-12-10 16:01:36 |
| lake-20201231_lab.xml | 15312 | 2020-12-10 16:01:36 |
| lake-20201231_pre.xml | 11160 | 2020-12-10 16:01:36 |
| lake_ex991.htm | 312855 | 2020-12-10 16:01:36 |
 lake_ex991000.jpg | 2729 | 2020-12-10 16:01:36 |
| MetaLinks.json | 17482 | 2020-12-10 16:01:36 |
| R1.htm | 38753 | 2020-12-10 16:01:36 |
| report.css | 2767 | 2020-12-10 16:01:36 |
| Show.js | 1085 | 2020-12-10 16:01:36 |