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Note 7 - Goodwill and Other Intangible Assets - Goodwill (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2020
Goodwill |  | $ 133,076 | $ 99,661
Goodwill acquired |  | 33,415 |
Accumulated impairment losses | $ (89,288) | (89,288) |
Goodwill | 45,030 | 43,788 |
Measurement period adjustment | 1,242 |  |
Lighting Segment [Member] |  |  |
Goodwill |  | 70,971 | 70,971
Goodwill acquired |  | 0 |
Accumulated impairment losses | (61,763) | (61,763) |
Goodwill | 9,208 | 9,208 |
Measurement period adjustment | 0 |  |
Display Solutions Segment [Member] |  |  |
Goodwill |  | 62,105 | $ 28,690
Goodwill acquired |  | 33,415 |
Accumulated impairment losses | (27,525) | (27,525) |
Goodwill | 35,822 | $ 34,580 |
Measurement period adjustment | $ 1,242 |  |

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