Note 3 - Segment Reporting Information (Details Textual) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Jun. 30, 2022 USD ($)
Number of Operating Segments			2
Revenue from Contract with Customer, Including Assessed Tax	$ 117,470	$ 110,111	$ 373,343	$ 327,651
Intersegment Revenue Markup Percentage			10.00%
Display Solutions Segment [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 50,763	$ 52,985	$ 172,269	$ 161,989
Revenue Benchmark [Member] | Customer Concentration Risk [Member]
Number of Major Customers	0		0
Accounts Receivable [Member] | Customer Concentration Risk [Member]
Number of Major Customers	0
Accounts Receivable [Member] | Customer Concentration Risk [Member] | One Customer [Member] | Display Solutions Segment [Member]
Number of Major Customers					1
Revenue from Contract with Customer, Including Assessed Tax					$ 8,500
Concentration Risk, Percentage					10.90%