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Note 2 - Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2021 | Dec. 31, 2020
Revenue | $ 111,143 | $ 76,387 | $ 217,540 | $ 146,393
Lighting Segment [Member] |  |  |  |
Revenue | 57,276 | 45,126 | 108,536 | 90,531
Lighting Segment [Member] | LED Lighting, Digital Signage, Electronic Circuit Boards [Member] |  |  |  |
Revenue | 47,626 | 40,514 | 89,505 | 78,383
Lighting Segment [Member] | Poles, Other Display Solution Elements [Member] |  |  |  |
Revenue | 9,079 | 4,154 | 18,045 | 11,228
Lighting Segment [Member] | Project Management, Installation Services, Shipping and Handling [Member] |  |  |  |
Revenue | 571 | 458 | 986 | 920
Display Solutions Segment [Member] |  |  |  |
Revenue | 53,867 | 31,261 | 109,004 | 55,862
Display Solutions Segment [Member] | LED Lighting, Digital Signage, Electronic Circuit Boards [Member] |  |  |  |
Revenue | 12,551 | 6,870 | 24,979 | 11,951
Display Solutions Segment [Member] | Poles, Other Display Solution Elements [Member] |  |  |  |
Revenue | 31,127 | 15,392 | 64,429 | 29,717
Display Solutions Segment [Member] | Project Management, Installation Services, Shipping and Handling [Member] |  |  |  |
Revenue | 10,189 | 8,999 | 19,596 | 14,194
Transferred at Point in Time [Member] | Lighting Segment [Member] |  |  |  |
Revenue | 50,141 | 39,941 | 94,723 | 79,981
Transferred at Point in Time [Member] | Display Solutions Segment [Member] |  |  |  |
Revenue | 35,437 | 15,987 | 72,868 | 30,441
Transferred over Time [Member] | Lighting Segment [Member] |  |  |  |
Revenue | 7,135 | 5,185 | 13,813 | 10,550
Transferred over Time [Member] | Display Solutions Segment [Member] |  |  |  |
Revenue | $ 18,430 | $ 15,274 | $ 36,136 | $ 25,421

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