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|---|---|---|
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| 0001654954-20-006426-index.html | 2020-06-09 16:03:01 | |
| 0001654954-20-006426.txt | 2020-06-09 16:03:01 | |
 0001654954-20-006426-xbrl.zip | 94846 | 2020-06-09 16:03:01 |
| FilingSummary.xml | 30071 | 2020-06-09 16:03:01 |
| Financial_Report.xlsx | 70142 | 2020-06-09 16:03:01 |
| lake-20200430.xml | 759922 | 2020-06-09 16:03:01 |
| lake-20200430.xsd | 37860 | 2020-06-09 16:03:01 |
| lake-20200430_cal.xml | 54844 | 2020-06-09 16:03:01 |
| lake-20200430_def.xml | 81284 | 2020-06-09 16:03:01 |
| lake-20200430_lab.xml | 243062 | 2020-06-09 16:03:01 |
| lake-20200430_pre.xml | 202154 | 2020-06-09 16:03:01 |
| lake_10q.htm | 1039490 | 2020-06-09 16:03:01 |
| lake_ex311.htm | 12871 | 2020-06-09 16:03:01 |
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| lake_ex321.htm | 6302 | 2020-06-09 16:03:01 |
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| report.css | 2767 | 2020-06-09 16:03:01 |
| Show.js | 1085 | 2020-06-09 16:03:01 |