Note 1 - Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Net Sales	$ 573,377	$ 469,638
Lighting Segment [Member]
Net Sales	248,357	262,413
Lighting Segment [Member] \| LED Lighting, Digital Signage, Electronic Circuit Boards [Member]
Net Sales	202,552	215,758
Lighting Segment [Member] \| Poles, Other Display Solution Elements [Member]
Net Sales	43,211	43,719
Lighting Segment [Member] \| Project Management, Installation Services, Shipping and Handling [Member]
Net Sales	2,594	2,936
Lighting Segment [Member] \| Transferred at Point in Time [Member]
Net Sales	208,193	219,820
Lighting Segment [Member] \| Transferred over Time [Member]
Net Sales	40,164	42,593
Display Solutions Segment [Member]
Net Sales	325,020	207,225
Display Solutions Segment [Member] \| LED Lighting, Digital Signage, Electronic Circuit Boards [Member]
Net Sales	26,144	32,521
Display Solutions Segment [Member] \| Poles, Other Display Solution Elements [Member]
Net Sales	233,792	132,604
Display Solutions Segment [Member] \| Project Management, Installation Services, Shipping and Handling [Member]
Net Sales	65,084	42,100
Display Solutions Segment [Member] \| Transferred at Point in Time [Member]
Net Sales	259,432	151,972
Display Solutions Segment [Member] \| Transferred over Time [Member]
Net Sales	$ 65,588	$ 55,253

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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+ Details

LSI INDUSTRIES INC 10-K