XML 53 R42.htm IDEA: XBRL DOCUMENT
v3.20.2

Stockholders Equity (Details) | 9 Months Ended
--- | ---
Oct. 31, 2020 USD ($) shares
Number of shares awarded total (shares) | 0
Granted June 7, 2018 |
Number of shares awarded total (shares) | 60,009
Value at grant date | $ | $ 837,120
Employees | Granted June 7, 2018 |
Number of shares awarded total (shares) | 42,805
Value at grant date | $ | $ 597,120
Non Employee Directors | Granted June 7, 2018 |
Number of shares awarded total (shares) | 17,204
Value at grant date | $ | $ 240,000
Minimum | Granted June 7, 2018 |
Number of shares awarded total (shares) | 25,002
Value at grant date | $ | $ 348,800
Minimum | Granted December 4, 2019 and April 9, 2020 |
Number of shares awarded total (shares) | 105,668
Value at grant date | $ | $ 1,281,540
Minimum | Employees | Granted June 7, 2018 |
Number of shares awarded total (shares) | 17,834
Value at grant date | $ | $ 248,800
Minimum | Employees | Granted December 4, 2019 and April 9, 2020 |
Number of shares awarded total (shares) | 78,004
Value at grant date | $ | $ 943,540
Minimum | Non Employee Directors | Granted June 7, 2018 |
Number of shares awarded total (shares) | 7,168
Value at grant date | $ | $ 100,000
Minimum | Non Employee Directors | Granted December 4, 2019 and April 9, 2020 |
Number of shares awarded total (shares) | 27,664
Value at grant date | $ | $ 338,000
Target | Granted June 7, 2018 |
Number of shares awarded total (shares) | 37,505
Value at grant date | $ | $ 523,200
Target | Granted December 4, 2019 and April 9, 2020 |
Number of shares awarded total (shares) | 162,566
Value at grant date | $ | $ 1,971,600
Target | Employees | Granted June 7, 2018 |
Number of shares awarded total (shares) | 26,753
Value at grant date | $ | $ 373,200
Target | Employees | Granted December 4, 2019 and April 9, 2020 |
Number of shares awarded total (shares) | 120,006
Value at grant date | $ | $ 1,451,600
Target | Non Employee Directors | Granted June 7, 2018 |
Number of shares awarded total (shares) | 10,752
Value at grant date | $ | $ 150,000
Target | Non Employee Directors | Granted December 4, 2019 and April 9, 2020 |
Number of shares awarded total (shares) | 42,560
Value at grant date | $ | $ 520,000
Maximum | Granted June 7, 2018 |
Number of shares awarded total (shares) | 50,006
Value at grant date | $ | $ 697,600
Maximum | Granted December 4, 2019 and April 9, 2020 |
Number of shares awarded total (shares) | 195,081
Value at grant date | $ | $ 2,365,920
Maximum | Employees | Granted June 7, 2018 |
Number of shares awarded total (shares) | 35,670
Value at grant date | $ | $ 497,600
Maximum | Employees | Granted December 4, 2019 and April 9, 2020 |
Number of shares awarded total (shares) | 144,009
Value at grant date | $ | $ 1,741,920
Maximum | Non Employee Directors | Granted June 7, 2018 |
Number of shares awarded total (shares) | 14,336
Value at grant date | $ | $ 200,000
Maximum | Non Employee Directors | Granted December 4, 2019 and April 9, 2020 |
Number of shares awarded total (shares) | 51,072
Value at grant date | $ | $ 624,000

X
- References No definition available. + Details
Name: | lake_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedInPeriodFairValue
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardDateAxis=lake_GrantDateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_TitleOfIndividualAxis=us-gaap_TrustForBenefitOfEmployeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_TitleOfIndividualAxis=lake_NonEmployeeDirectorsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=lake_GrantDate1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=lake_TargetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |