Note F - Goodwill and Other Intangibles - Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Balance, Definite Intangible Assets Gross Carrying Amount	$ 13,485	$ 13,436
Addition, Definite Intangible Assets Gross Carrying Amount	236	19
Translation adjustment, Definite Intangible Assets Gross Carrying Amount	(634)	30
Acquistion, Definite Intangible Assets Gross Carrying Amount	26,500
Balance, Definite Intangible Assets Gross Carrying Amount	39,587	13,485
Balance, Definite Intangible Assets Accumulated Amortization/Impairment	(11,781)	(11,632)
Amortization, Definite Intangible Assets	(2,653)	(149)
Translation adjustment, Definite Intangible Assets Accumulated Amortization/Impairment
Balance, Definite Intangible Assets Accumulated Amortization/Impairment	(14,434)	(11,781)
Balance at June 30, Definite Intangible Assets Net Book Value	1,704	1,804
Addition, Definite Intangible Assets Net Book Value	236	19
Translation adjustment, Definite Intangible Assets Net Book Value	(634)	30
Acquistion, Definite Intangible Assets Net Book Value	26,500
Balance at June 30, Definite Intangible Assets Net Book Value	25,153	1,704
Customer Relationships [Member]
Amortization, Definite Intangible Assets	(1,123)
Balance at June 30, Definite Intangible Assets Net Book Value
Addition, Definite Intangible Assets Net Book Value
Translation adjustment, Definite Intangible Assets Net Book Value	(334)
Acquistion, Definite Intangible Assets Net Book Value	16,300
Balance at June 30, Definite Intangible Assets Net Book Value	14,843
Technology-Based Intangible Assets [Member]
Amortization, Definite Intangible Assets	(1,172)
Balance at June 30, Definite Intangible Assets Net Book Value
Addition, Definite Intangible Assets Net Book Value
Translation adjustment, Definite Intangible Assets Net Book Value	(203)
Acquistion, Definite Intangible Assets Net Book Value	8,400
Balance at June 30, Definite Intangible Assets Net Book Value	7,025
Trade Names [Member]
Amortization, Definite Intangible Assets	(261)	(84)
Balance at June 30, Definite Intangible Assets Net Book Value	1,288	1,319
Addition, Definite Intangible Assets Net Book Value
Translation adjustment, Definite Intangible Assets Net Book Value	(94)	53
Acquistion, Definite Intangible Assets Net Book Value	1,800
Balance at June 30, Definite Intangible Assets Net Book Value	2,733	1,288
Other Intangible Assets [Member]
Amortization, Definite Intangible Assets	(97)	(65)
Balance at June 30, Definite Intangible Assets Net Book Value	416	485
Addition, Definite Intangible Assets Net Book Value	236	19
Translation adjustment, Definite Intangible Assets Net Book Value	(3)	(23)
Acquistion, Definite Intangible Assets Net Book Value
Balance at June 30, Definite Intangible Assets Net Book Value	$ 552	$ 416