Note E - Goodwill and Intangible Assets, Net - Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Balance, Definite Intangible Assets Gross Carrying Amount	$ 36,427	$ 31,925
Balance, Definite Intangible Assets Accumulated Amortization/Impairment	(23,741)	(19,288)
Balance at June 30, Definite Intangible Assets Net Book Value	12,686	12,637
Addition, Definite Intangible Assets Gross Carrying Amount	3,471	5,382
Addition, Accumulated Amortization or Impairment		(1,894)
Addition, Definite Intangible Assets Net Book Value	3,471	3,488
Reduction, Definite Intangible Assets Gross Carrying Amount		(714)
Reduction, Definite Intangible Assets Accumulated Amortization/Impairment		714
Amortization, Intangible Asset	(3,959)	(3,273)
Translation adjustment, Definite Intangible Assets Gross Carrying Amount	(3,505)	(166)
Translation adjustment, Definite Intangible Assets Net Book Value	1,163	(166)
Amortization, Intangible Asset	(3,959)	(3,273)
Translation adjustment, Definite Intangible Assets Gross Carrying Amount	3,505	166
Translation adjustment, Definite Intangible Assets Accumulated Amortization/Impairment	(2,342)
Balance, Definite Intangible Assets Gross Carrying Amount	43,403	36,427
Balance, Definite Intangible Assets Accumulated Amortization/Impairment	(30,042)	(23,741)
Balance at June 30, Definite Intangible Assets Net Book Value	13,361	12,686
Customer Relationships [Member]
Balance at June 30, Definite Intangible Assets Net Book Value	6,720	6,553
Addition, Definite Intangible Assets Net Book Value	1,187	1,519
Amortization, Intangible Asset	(1,341)	(1,245)
Translation adjustment, Definite Intangible Assets Net Book Value	629	(107)
Amortization, Intangible Asset	(1,341)	(1,245)
Balance at June 30, Definite Intangible Assets Net Book Value	7,195	6,720
Technology-Based Intangible Assets [Member]
Balance at June 30, Definite Intangible Assets Net Book Value	2,089	2,422
Addition, Definite Intangible Assets Net Book Value	908	987
Amortization, Intangible Asset	(1,312)	(1,280)
Translation adjustment, Definite Intangible Assets Net Book Value	149	(40)
Amortization, Intangible Asset	(1,312)	(1,280)
Balance at June 30, Definite Intangible Assets Net Book Value	1,834	2,089
Trade Names [Member]
Balance at June 30, Definite Intangible Assets Net Book Value	1,520	668
Addition, Definite Intangible Assets Net Book Value	628	857
Amortization, Intangible Asset	(281)	0
Translation adjustment, Definite Intangible Assets Net Book Value	169	(5)
Amortization, Intangible Asset	(281)	0
Balance at June 30, Definite Intangible Assets Net Book Value	2,036	1,520
Other Intangible Assets [Member]
Balance at June 30, Definite Intangible Assets Net Book Value	2,357	2,994
Addition, Definite Intangible Assets Net Book Value	748	125
Amortization, Intangible Asset	(1,025)	(748)
Translation adjustment, Definite Intangible Assets Net Book Value	216	(14)
Amortization, Intangible Asset	(1,025)	(748)
Balance at June 30, Definite Intangible Assets Net Book Value	$ 2,296	$ 2,357