Note 12 - Status of Defined Benefit Plans - US & UK Combined (Details) - US and UK Plans Combined [Member] - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Change in Benefit Obligations [Member]
Benefit obligation at beginning of year	$ 166,189	$ 161,062	$ 141,316
Service cost	2,757	2,663	2,709
Interest cost	7,032	6,818	6,922
Participant contributions			183
Exchange rate changes	(7,825)	(4,167)	5,359
Benefits paid	(6,590)	(6,524)	(5,956)
Actuarial (gain) loss	13,670	6,337	10,529
Benefit obligation at end of year	175,233	166,189	161,062
Change in Plan Assets [Member]
Participant contributions			183
Exchange rate changes	(5,890)	(3,128)	4,095
Benefits paid	(6,590)	(6,524)	(5,956)
Fair value of plan assets at beginning of year	122,787	122,924	109,326
Actual return on plan assets	226	3,466	14,105
Employer contributions	4,482	6,049	1,171
Fair value of plan assets at end of year	115,015	122,787	122,924
Amounts Recongnized in Balance Sheet [Member]
Current liability	(45)	(37)	(37)
Noncurrent liability	(60,173)	(43,365)	(38,101)
Net amount recognized in balance sheet	(60,218)	(43,402)	(38,138)
Components of Net Periodic Benefit Cost [Member]
Service cost	2,757	2,663	2,709
Interest cost	7,032	6,818	6,922
Expected return on plan assets	(6,268)	(6,966)	(6,332)
Amortization of prior service cost			116
Recognized actuarial loss	17,878	1,309	398
Net periodic benefit cost	21,399	3,824	3,813
Funded status at end of year	(60,218)	(43,402)	(38,138)
Net amount recognized in balance sheet	(60,218)	(43,402)	(38,138)
Prior service cost
Accumulated loss	(17,849)	(16,795)	(8,686)
Amounts not yet recognized as a component of net periodic benefit cost	(17,849)	(16,795)	(8,686)
Accumulated net periodic benefit cost in excess of contributions	(42,369)	(26,607)	(29,452)
Recognized actuarial loss	(114)	(53)
Prior service cost			(30)
Projected benefit obligation	175,233	166,189	161,062
Accumulated benefit obligation	168,119	159,174	154,163
Fair value of assets	$ 115,015	$ 122,787	$ 122,924