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|---|---|---|
 0001654954-19-010468-index-headers.html | 2019-09-09 16:01:26 | |
| 0001654954-19-010468-index.html | 2019-09-09 16:01:26 | |
| 0001654954-19-010468.txt | 2019-09-09 16:01:26 | |
 0001654954-19-010468-xbrl.zip | 95095 | 2019-09-09 16:01:26 |
| FilingSummary.xml | 26556 | 2019-09-09 16:01:26 |
| Financial_Report.xlsx | 68350 | 2019-09-09 16:01:26 |
| lake-20190731.xml | 886815 | 2019-09-09 16:01:26 |
| lake-20190731.xsd | 29087 | 2019-09-09 16:01:26 |
| lake-20190731_cal.xml | 57155 | 2019-09-09 16:01:26 |
| lake-20190731_def.xml | 72843 | 2019-09-09 16:01:26 |
| lake-20190731_lab.xml | 212738 | 2019-09-09 16:01:26 |
| lake-20190731_pre.xml | 177240 | 2019-09-09 16:01:26 |
| lake_10q.htm | 1276747 | 2019-09-09 16:01:26 |
| lake_ex101.htm | 69961 | 2019-09-09 16:01:26 |
| lake_ex311.htm | 13121 | 2019-09-09 16:01:26 |
| lake_ex312.htm | 13205 | 2019-09-09 16:01:26 |
| lake_ex321.htm | 5840 | 2019-09-09 16:01:26 |
| lake_ex322.htm | 5322 | 2019-09-09 16:01:26 |
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| report.css | 2767 | 2019-09-09 16:01:26 |
| Show.js | 1085 | 2019-09-09 16:01:26 |