Note 16 - Employee Benefit Plans - Funded Status for US and Foreign Pension Plan (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Fair value of plan assets at beginning of year	$ 225,870
Fair value of plan assets at end of year	236,935	$ 225,870
Non-current liabilities	(110,926)	(116,128)
UNITED STATES
Benefit obligation at beginning of year	253,540	243,096
Service cost	3	3	$ 3
Interest cost	9,083	10,342	10,079
Actuarial loss (gain)	18,121	16,268
Benefits paid	(16,128)	(16,169)
Foreign currency exchange rate & other changes	(0)	(0)
Projected benefit obligation at end of year	264,619	253,540	243,096
Fair value of plan assets at beginning of year	186,205	190,960
Actual return on plan assets	21,447	11,190
Employer contribution	3,301	244
Benefits paid	(16,129)	(16,189)
Foreign currency exchange rate	0	0
Fair value of plan assets at end of year	194,824	186,205	190,960
Funded Status	(69,795)	(67,335)
Prepaid Benefit Cost	0	0
Current liabilities	(208)	(211)
Non-current liabilities	(69,587)	(67,124)
Net amount recognized	(69,795)	(67,335)
Unrecognized net actuarial loss	140,501	135,779
Unrecognized prior service cost	0	0
Accumulated other comprehensive income, pre-tax	140,501	135,779
Foreign Plan [Member]
Benefit obligation at beginning of year	43,983	41,194
Service cost	236	189	187
Interest cost	846	1,013	1,050
Actuarial loss (gain)	2,604	4,580
Benefits paid	(1,537)	(1,545)
Foreign currency exchange rate & other changes	942	1,448
Projected benefit obligation at end of year	45,190	43,983	41,194
Fair value of plan assets at beginning of year	39,665	38,117
Actual return on plan assets	4,037	3,464
Employer contribution	739	1,115
Benefits paid	(1,537)	(1,545)
Foreign currency exchange rate	(931)	(1,486)
Fair value of plan assets at end of year	41,973	39,665	$ 38,117
Funded Status	(3,217)	(4,318)
Prepaid Benefit Cost	4,663	3,919
Current liabilities	(295)	(213)
Non-current liabilities	(7,585)	(8,024)
Net amount recognized	(3,217)	(4,318)
Unrecognized net actuarial loss	5,075	6,405
Unrecognized prior service cost	(57)	(42)
Accumulated other comprehensive income, pre-tax	$ 5,018	$ 6,363