Note 8 - Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Jun. 30, 2025
finite lived, gross	$ 106,981	$ 107,173
finite lived, accumulated amortization	47,451	45,897
finite lived, net	59,530	61,276
indefinite lived	16,982	16,982
Total Other Intangible Assets	123,963	124,155
total, net	76,512	78,258
Trademarks and Trade Names [Member]
indefinite lived	16,982	16,982
Customer Relationships [Member]
finite lived, gross	78,315	78,485
finite lived, accumulated amortization	26,307	25,251
finite lived, net	52,008	53,234
Patents [Member]
finite lived, gross	268	268
finite lived, accumulated amortization	268	268
finite lived, net	0	0
LED Technology Firmware Software [Member]
finite lived, gross		24,126
finite lived, accumulated amortization		18,694
finite lived, net		5,432
Trade Names [Member]
finite lived, gross	3,685	3,704
finite lived, accumulated amortization	1,456	1,404
finite lived, net	2,229	2,300
Technology-Based Intangible Assets [Member]
finite lived, gross	24,126
finite lived, accumulated amortization	19,103
finite lived, net	5,023
Noncompete Agreements [Member]
finite lived, gross	587	590
finite lived, accumulated amortization	317	280
finite lived, net	$ 270	$ 310