Note 8 - Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Jun. 30, 2024
finite lived, gross	$ 97,025	$ 97,025
finite lived, accumulated amortization	42,907	40,091
finite lived, net	54,118	56,934
indefinite lived	16,982	16,982
Total Other Intangible Assets	114,007	114,007
Other intangible assets, net	71,100	73,916
Trademarks and Trade Names [Member]
indefinite lived	16,982	16,982
Customer Relationships [Member]
finite lived, gross	69,573	69,573
finite lived, accumulated amortization	23,227	21,332
finite lived, net	46,346	48,241
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		17,058
finite lived, net		7,068
Trade Names [Member]
finite lived, gross	2,658	2,658
finite lived, accumulated amortization	1,319	1,265
finite lived, net	1,339	1,393
Noncompete Agreements [Member]
finite lived, gross	400	400
finite lived, accumulated amortization	217	168
finite lived, net	183	$ 232
Technology-Based Intangible Assets [Member]
finite lived, gross	24,126
finite lived, accumulated amortization	17,876
finite lived, net	$ 6,250