Note M - Segment Information - Assets and Capital Expenditures by Geographical Region (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Long-Lived Assets	$ 19,290	$ 18,136
Total Assets	85,207	72,611
Capital Expenditures	4,081	5,354
UNITED STATES
Long-Lived Assets	10,887	10,753
Total Assets	51,562	47,777
Capital Expenditures	1,564	2,365
Europe [Member]
Long-Lived Assets	8,403	7,383
Total Assets	33,645	24,834
Capital Expenditures	$ 2,517	$ 2,989