Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jun. 30, 2020

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Twelve Months Ended
(In thousands)	June 30, 2020
	Lighting Segment		Graphics Segment
Timing of revenue recognition
Products and services transferred at a point in time	$	181,613	$	66,605
Products and services transferred over time		24,586		32,754
	$	206,199	$	99,359
Type of Product and Services
LED lighting, digital signage solutions, electronic circuit boards	$	177,000	$	15,075
Legacy products		26,964		62,409
Turnkey services and other		2,235		21,875
	$	206,199	$	99,359

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

(In thousands)	June 30, 2020			June 30, 2019
Accounts receivable	$	38,109		$	55,607
Less: Allowance for doubtful accounts		(273	)		(879	)
Accounts receivable, net	$	37,836		$	54,728

Property, Plant and Equipment [Table Text Block]

Buildings (in years)	28	-	40
Machinery and equipment (in years)	3	-	10
Computer software (in years)	3	-	8

Schedule of Product Warranty Liability [Table Text Block]

(In thousands)	June 30, 2020			June 30, 2019
Balance at beginning of the period	$	7,687		$	6,876
Additions charged to expense		2,482			5,190
Deductions for repairs and replacements		(3,213	)		(4,379	)
Balance at end of the period	$	6,956		$	7,687

Accounting Standards Update and Change in Accounting Principle [Table Text Block]

						Opening
(In thousands)	Balance as of					Balance as of
	June 30, 2018		Adjustments			July 1, 2018
Assets:
Accounts receivable, net	$	50,609	$	4,935		$	55,544
Inventories, net	$	50,994	$	(4,167	)	$	46,827
Other long-term assets, net	$	9,786	$	(177	)	$	9,609
Shareholder's Equity:
Retained earnings	$	15,124	$	591		$	15,715