Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001144204-17-032514-index-headers.html | 2017-06-14 16:03:41 | |
| 0001144204-17-032514-index.html | 2017-06-14 16:03:41 | |
| 0001144204-17-032514.txt | 2017-06-14 16:03:41 | |
 0001144204-17-032514-xbrl.zip | 122097 | 2017-06-14 16:03:41 |
| FilingSummary.xml | 23487 | 2017-06-14 16:03:41 |
| Financial_Report.xlsx | 61104 | 2017-06-14 16:03:41 |
| lake-20170430.xml | 1100153 | 2017-06-14 16:03:41 |
| lake-20170430.xsd | 34595 | 2017-06-14 16:03:41 |
| lake-20170430_cal.xml | 40513 | 2017-06-14 16:03:41 |
| lake-20170430_def.xml | 230518 | 2017-06-14 16:03:41 |
| lake-20170430_lab.xml | 295952 | 2017-06-14 16:03:41 |
| lake-20170430_pre.xml | 263885 | 2017-06-14 16:03:41 |
| R1.htm | 22067 | 2017-06-14 16:03:41 |
| R10.htm | 16356 | 2017-06-14 16:03:41 |
| R11.htm | 89625 | 2017-06-14 16:03:41 |
| R12.htm | 11533 | 2017-06-14 16:03:41 |
| R13.htm | 44357 | 2017-06-14 16:03:41 |
| R14.htm | 12902 | 2017-06-14 16:03:41 |
| R15.htm | 28315 | 2017-06-14 16:03:41 |
| R16.htm | 14053 | 2017-06-14 16:03:41 |
| R17.htm | 13111 | 2017-06-14 16:03:41 |
| R18.htm | 207935 | 2017-06-14 16:03:41 |
| R19.htm | 12495 | 2017-06-14 16:03:41 |
| R2.htm | 37844 | 2017-06-14 16:03:41 |
| R20.htm | 74247 | 2017-06-14 16:03:41 |
| R21.htm | 16302 | 2017-06-14 16:03:41 |
| R22.htm | 83726 | 2017-06-14 16:03:41 |
| R23.htm | 30460 | 2017-06-14 16:03:41 |
| R24.htm | 27520 | 2017-06-14 16:03:41 |
| R25.htm | 205935 | 2017-06-14 16:03:41 |
| R26.htm | 12391 | 2017-06-14 16:03:41 |
| R27.htm | 21450 | 2017-06-14 16:03:41 |
| R28.htm | 34372 | 2017-06-14 16:03:41 |
| R29.htm | 69836 | 2017-06-14 16:03:41 |
| R3.htm | 16126 | 2017-06-14 16:03:41 |
| R30.htm | 18271 | 2017-06-14 16:03:41 |
| R31.htm | 29884 | 2017-06-14 16:03:41 |
| R32.htm | 53609 | 2017-06-14 16:03:41 |
| R33.htm | 17448 | 2017-06-14 16:03:41 |
| R34.htm | 21075 | 2017-06-14 16:03:41 |
| R35.htm | 4966 | 2017-06-14 16:03:41 |
| R36.htm | 6903 | 2017-06-14 16:03:41 |
| R37.htm | 19737 | 2017-06-14 16:03:41 |
| R38.htm | 14287 | 2017-06-14 16:03:41 |
| R39.htm | 89415 | 2017-06-14 16:03:41 |
| R4.htm | 88201 | 2017-06-14 16:03:41 |
| R40.htm | 35990 | 2017-06-14 16:03:41 |
| R5.htm | 22897 | 2017-06-14 16:03:41 |
| R6.htm | 75268 | 2017-06-14 16:03:41 |
| R7.htm | 6473 | 2017-06-14 16:03:41 |
| R8.htm | 7977 | 2017-06-14 16:03:41 |
| R9.htm | 39417 | 2017-06-14 16:03:41 |
| report.css | 2767 | 2017-06-14 16:03:41 |
| Show.js | 1410 | 2017-06-14 16:03:41 |
| v468244_10q.htm | 352454 | 2017-06-14 16:03:41 |
| v468244_ex31-1.htm | 10653 | 2017-06-14 16:03:41 |
| v468244_ex31-2.htm | 9859 | 2017-06-14 16:03:41 |
| v468244_ex32-1.htm | 3526 | 2017-06-14 16:03:41 |
| v468244_ex32-2.htm | 3444 | 2017-06-14 16:03:41 |