Note 17 - Employee Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
UNITED STATES
Service Cost	$ 3	$ 3	$ 3
Interest Cost	10,342	10,079	10,451
Expected return on plan assets	(13,541)	(13,484)	(13,761)
Recognized net actuarial loss	4,121	4,579	4,760
Amortization of prior service cost (benefit)
Net periodic benefit cost (benefit)	925	1,177	1,453
Foreign Plan [Member]
Service Cost	189	187	37
Interest Cost	1,013	1,050	1,022
Expected return on plan assets	(908)	(947)	(1,152)
Recognized net actuarial loss	340	941	1,016
Amortization of prior service cost (benefit)	(3)	(37)	(48)
Net periodic benefit cost (benefit)	$ 631	$ 1,194	$ 875