Note 12 - Status of Defined Benefit Plans - UK Plan (Details) - UK Plan [Member] - USD ($)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Change in Benefit Obligations [Member]
Benefit obligation at beginning of year	$ 49,791,000	$ 51,008,000	$ 41,528,000
Service cost	0	0	383,000
Interest cost	1,784,000	1,979,000	2,054,000
Participant contributions			183,000
Exchange rate changes	(7,825,000)	(4,167,000)	5,359,000
Benefits paid	(1,997,000)	(2,152,000)	(1,693,000)
Actuarial (gain) loss	2,617,000	3,123,000	3,194,000
Benefit obligation at end of year	44,370,000	49,791,000	51,008,000
Benefits paid	(1,997,000)	(2,152,000)	(1,693,000)
Change in Plan Assets [Member]
Participant contributions			183,000
Benefits paid	(1,997,000)	(2,152,000)	(1,693,000)
Fair value of plan assets at beginning of year	37,934,000	38,295,000	32,118,000
Actual return on plan assets	1,956,000	3,740,000	2,444,000
Employer contributions	1,102,000	1,179,000	1,148,000
Benefits paid	(1,997,000)	(2,152,000)	(1,693,000)
Exchange rate changes	(5,890,000)	(3,128,000)	4,095,000
Fair value of plan assets at end of year	33,105,000	37,934,000	38,295,000
Funded status at end of year	(11,265,000)	(11,857,000)	(12,713,000)
Amounts Recongnized in Balance Sheet [Member]
Noncurrent liability	(11,265,000)	(11,857,000)	(12,713,000)
Net amount recognized in balance sheet	(11,265,000)	(11,857,000)	(12,713,000)
Components of Net Periodic Benefit Cost [Member]
Service cost			383,000
Interest cost	1,784,000	1,979,000	2,054,000
Expected return on plan assets	(1,679,000)	(1,903,000)	(1,848,000)
Recognized actuarial loss	2,099,000	990,000	386,000
Net periodic benefit cost	$ 2,204,000	$ 1,066,000	$ 975,000
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	3.00%	3.90%	4.30%
Net amount recognized in balance sheet	$ (11,265,000)	$ (11,857,000)	$ (12,713,000)
Discount rate	3.90%	4.30%	4.70%
Rate of compensation increase			3.10%
Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Expected Long Term Return on Assets	4.77%	5.45%	5.40%
Amortization of prior service cost
Accumulated loss	(4,437,000)	(4,978,000)	(5,101,000)
Amounts not yet recognized as a component of net periodic benefit cost	(4,437,000)	(4,978,000)	(5,101,000)
Accumulated net periodic benefit cost in excess of contributions	(6,828,000)	(6,879,000)	(7,612,000)
Projected benefit obligation	44,370,000	49,791,000	51,008,000
Accumulated benefit obligation	44,370,000	49,791,000	51,008,000
Fair value of assets	$ 33,104,000	$ 37,934,000	$ 38,295,000