Note 9 - Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Jun. 30, 2024
finite lived, gross	$ 106,980	$ 97,025
finite lived, accumulated amortization	44,355	40,091
finite lived, net	62,625	56,934
indefinite lived	16,982	16,982
Total Other Intangible Assets	123,962	114,007
Other intangible assets, net	79,607	73,916
Trademarks and Trade Names [Member]
indefinite lived	16,982	16,982
Customer Relationships [Member]
finite lived, gross	78,299	69,573
finite lived, accumulated amortization	24,206	21,332
finite lived, net	54,093	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	3,667	2,658
finite lived, accumulated amortization	1,351	1,265
finite lived, net	2,316	1,393
Technology-Based Intangible Assets [Member]
finite lived, gross	24,126
finite lived, accumulated amortization	18,285
finite lived, net	5,841
Noncompete Agreements [Member]
finite lived, gross	620	400
finite lived, accumulated amortization	245	168
finite lived, net	$ 375	$ 232