XML 68 R54.htm IDEA: XBRL DOCUMENT
v3.19.1

Note 13 - Restructuring Costs - Summary of Restructuring Costs for the Period (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Mar. 31, 2019 | Mar. 31, 2018
Restructuring and related costs | $ 368 |  | $ 924 |
Severance and Other Termination Benefits [Member] |  |  |  |
Restructuring and related costs | 263 |  | 484 |
Facility Repairs [Member] |  |  |  |
Restructuring and related costs | 52 |  | 99 |
Restructuring Impairment of Fixed Assets and Accelerated Depreciation [Member] |  |  |  |
Restructuring and related costs |  |  | 228 |
Other Restructuring [Member] |  |  |  |
Restructuring and related costs | $ 53 |  | $ 113 |

X
- Definition Discloses the amount of restructuring cost or gain incurred during the period. + References No definition available. + Details
Name: | lyts_RestructuringAndRelatedCostIncurredCostGain
Namespace Prefix: | lyts_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=lyts_SeveranceAndOtherTerminationBenefitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=lyts_FacilityRepairsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=lyts_RestructuringImpairmentOfFixedAssetsAndAcceleratedDepreciationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=us-gaap_OtherRestructuringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |