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Note 8 - Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Jun. 30, 2021
--- | --- | ---
Amortized intangible assets, gross | $ 86,235 | $ 86,235
Accumulated amortization | 29,175 | 25,564
Amortized intangible assets, net | 57,060 | 60,671
Indefinite-lived intangible assets, gross | 12,102 | 12,102
Total other intangible assets, gross | 98,337 | 98,337
Other intangible assets, net | 69,162 | 72,773
Trademarks and Trade Names [Member] |  |
Indefinite-lived intangible assets, gross | 12,102 | 12,102
Customer Relationships [Member] |  |
Amortized intangible assets, gross | 62,083 | 62,083
Accumulated amortization | 13,546 | 10,967
Amortized intangible assets, net | 48,537 | 51,116
Patents [Member] |  |
Amortized intangible assets, gross | 268 | 268
Accumulated amortization | 260 | 237
Amortized intangible assets, net | 8 | 31
Technology-Based Intangible Assets [Member] |  |
Amortized intangible assets, gross | 20,966 |
Accumulated amortization | 14,303 |
Amortized intangible assets, net | 6,663 |
LED Technology Firmware Software [Member] |  |
Amortized intangible assets, gross |  | 20,966
Accumulated amortization |  | 13,415
Amortized intangible assets, net |  | 7,551
Trade Names [Member] |  |
Amortized intangible assets, gross | 2,658 | 2,658
Accumulated amortization | 1,021 | 939
Amortized intangible assets, net | 1,637 | 1,719
Noncompete Agreements [Member] |  |
Amortized intangible assets, gross | 260 | 260
Accumulated amortization | 45 | 6
Amortized intangible assets, net | $ 215 | $ 254

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