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| 0001654954-20-004107-index.html | 2020-04-15 16:02:27 | |
| 0001654954-20-004107.txt | 2020-04-15 16:02:27 | |
 0001654954-20-004107-xbrl.zip | 125503 | 2020-04-15 16:02:27 |
| FilingSummary.xml | 33661 | 2020-04-15 16:02:27 |
| Financial_Report.xlsx | 87920 | 2020-04-15 16:02:27 |
| lake-20200131.xml | 920785 | 2020-04-15 16:02:27 |
| lake-20200131.xsd | 44748 | 2020-04-15 16:02:27 |
| lake-20200131_cal.xml | 69371 | 2020-04-15 16:02:27 |
| lake-20200131_def.xml | 107245 | 2020-04-15 16:02:27 |
| lake-20200131_lab.xml | 308274 | 2020-04-15 16:02:27 |
| lake-20200131_pre.xml | 250502 | 2020-04-15 16:02:27 |
| lake_10k.htm | 1679550 | 2020-04-15 16:02:27 |
| lake_ex231.htm | 4102 | 2020-04-15 16:02:27 |
| lake_ex311.htm | 12462 | 2020-04-15 16:02:27 |
| lake_ex312.htm | 12483 | 2020-04-15 16:02:27 |
| lake_ex321.htm | 5713 | 2020-04-15 16:02:27 |
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| report.css | 2767 | 2020-04-15 16:02:27 |
| Show.js | 1085 | 2020-04-15 16:02:27 |