Note 16 - Employee Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
UNITED STATES
Service Cost	$ 3	$ 3	$ 70
Interest Cost	10,079	10,451	11,489
Expected return on plan assets	(13,484)	(13,761)	(13,864)
Recognized net actuarial loss	4,579	4,760	3,979
Amortization of prior service cost (benefit)			14
Net periodic benefit cost (benefit)	1,177	1,453	1,688
Foreign Plan [Member]
Service Cost	187	37	34
Interest Cost	1,050	1,022	1,428
Expected return on plan assets	(947)	(1,152)	(1,294)
Recognized net actuarial loss	941	1,016	835
Amortization of prior service cost (benefit)	(37)	(48)	(49)
Net periodic benefit cost (benefit)	$ 1,194	$ 875	$ 954