Note 7 - Accumulated Other Comprehensive Income - Changes in Accumulated Other Comprehensive Income (Loss), Net of Tax (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2017 USD ($)
Beginning balance	$ 879,280
Ending balance	949,627
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Beginning balance	(5,542)
Other comprehensive income (loss)	24,531
Ending balance	18,989
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Beginning balance	(64,863)
Other comprehensive income (loss)	(3,061)
Ending balance	(67,924)
AOCI Attributable to Parent [Member]
Beginning balance	(70,405)
Other comprehensive income (loss)	21,470
Ending balance	$ (48,935)