| Jun 30,
2012 | Jun 30,
2013 | Jun 30,
2014 | Jun 30,
2015 | Jun 30,
2016 | Jun 30,
2017 | Jun 30,
2018 | Jun 30,
2019 | Jun 30,
2020 | Jun 30,
2021 | Jun 30,
2022 | Jun 30,
2023 |
|---|
| Net Income | 3 | -0 | 1 | 5 | 9 | 3 | -20 | -16 | 10 | 6 | 15 | 26 |
|---|
| Depreciation and amortization | 8 | 7 | 6 | 6 | 7 | 8 | 10 | 10 | 9 | 8 | 10 | 10 |
|---|
| Deferred income taxes | 0 | 0 | 1 | -0 | -1 | -1 | -5 | -6 | 4 | -1 | -0 | -0 |
|---|
| Deferred compensation plan | 0 | 0 | 0 | -1 | 0 | 0 | 0 | 0 | 0 | 2 | 4 | 2 |
|---|
| Stock compensation expense | 0 | 0 | 0 | 0 | 3 | 3 | 3 | 1 | 1 | 2 | 3 | 4 |
|---|
| lyts_IssuanceOfCommonStockAsCompensation | - | - | - | - | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
|---|
| ESPP discount | - | - | - | - | - | - | - | - | - | - | - | 0 |
|---|
| Loss on disposition of fixed assets | -0 | -0 | -0 | -0 | 0 | -0 | 0 | 0 | 9 | -0 | -0 | -0 |
|---|
| lyts_IssuanceOfCommonStockAsCompensation | - | - | - | - | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
|---|
| Allowance for doubtful accounts | 0 | -0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | -0 |
|---|
| Loss on disposition of fixed assets | -0 | -0 | -0 | -0 | 0 | -0 | 0 | 0 | 9 | -0 | -0 | -0 |
|---|
| Inventory obsolescence reserve | 0 | 1 | 1 | 1 | 2 | 2 | 3 | 4 | 2 | 2 | 2 | 2 |
|---|
| Allowance for doubtful accounts | 0 | -0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | -0 |
|---|
| Inventory obsolescence reserve | 0 | 1 | 1 | 1 | 2 | 2 | 3 | 4 | 2 | 2 | 2 | 2 |
|---|
| Accounts receivable | -1 | 2 | -3 | 2 | 3 | -5 | 2 | -0 | -16 | 11 | 20 | -0 |
|---|
| Inventories | -9 | 2 | 5 | -0 | 3 | -1 | 4 | 0 | -2 | 12 | 18 | -8 |
|---|
| Refundable income taxes | -2 | 1 | 1 | -2 | -0 | 1 | 1 | -1 | 2 | -2 | -0 | 2 |
|---|
| Accounts payable | 2 | 1 | 1 | 1 | -1 | 2 | -2 | 1 | -4 | 14 | 2 | -6 |
|---|
| Accrued expenses and other | -1 | 1 | 0 | 6 | 5 | -2 | -0 | -4 | -1 | 6 | -2 | 5 |
|---|
| Net cash flows provided by (used in) operating activities | 24 | 9 | 12 | 21 | 18 | - | 12 | 11 | 30 | 28 | -4 | 50 |
|---|
| Acquisition of JSI | - | - | - | - | - | - | - | - | - | - | 1 | - |
|---|
| Purchases of property, plant, and equipment | 3 | 8 | 5 | 5 | 10 | 7 | 3 | 3 | 3 | 2 | 2 | 3 |
|---|
| Proceeds from the sale of fixed assets | 0 | 0 | 0 | 1 | 0 | 3 | 2 | 0 | 20 | - | 0 | 0 |
|---|
| Net cash flows (used in) investing activities | -6 | -8 | -5 | -2 | -10 | - | -2 | -3 | 17 | -93 | -2 | -3 |
|---|
| Payments on long-term debt | 1 | - | - | - | - | 41 | 99 | 126 | 205 | 19 | 162 | 198 |
|---|
| Borrowings on long-term debt | - | - | - | - | - | 91 | 95 | 121 | 165 | 87 | 173 | 154 |
|---|
| Cash dividends paid | 6 | 9 | 6 | 3 | 4,214,000 | 5,048,000 | 5,154,000 | 5,184,000 | 5 | 5 | 5 | 5 |
|---|
| Shares withheld on employees' taxes | - | - | - | - | - | - | 0 | 0 | 0 | 0 | 0 | 1 |
|---|
| Payments on financing lease obligations | - | - | - | - | - | - | - | - | 0 | 0 | 0 | 0 |
|---|
| Proceeds from stock option exercises | 0 | 175,023 | 0 | 1 | 4 | 3 | 285,875 | - | 1 | 1 | 0 | 4 |
|---|
| Net cash flows (used in) provided by financing activities | -7 | -9 | -6 | -1 | -0 | - | -9 | -11 | -44 | 64 | 6 | -47 |
|---|
| Change related to Foreign Currency | - | - | - | - | - | - | - | - | -0 | 0 | -0 | 0 |
|---|
| (Decrease) increase in cash and cash equivalents | - | - | - | - | - | - | - | - | 3 | -1 | 0 | -1 |
|---|