Note 17 - Employee Benefits - Target Asset Allocations (Details)	12 Months Ended
	Jun. 30, 2016
Equity Securities [Member] | United States Pension Plan of US Entity [Member]
Target asset allocations	32.00%
Equity Securities [Member] | Foreign Pension Plan [Member] | UNITED KINGDOM
Target asset allocations	25.00%
Debt Securities [Member] | United States Pension Plan of US Entity [Member]
Target asset allocations	33.00%
Debt Securities [Member] | Foreign Pension Plan [Member] | UNITED KINGDOM
Target asset allocations	60.00%
Hedge Funds, Global Opportunity [Member] | United States Pension Plan of US Entity [Member]
Target asset allocations	25.00%
Hedge Funds, Global Opportunity [Member] | Foreign Pension Plan [Member] | UNITED KINGDOM
Target asset allocations	12.00%
Other Debt Obligations [Member] | United States Pension Plan of US Entity [Member]
Target asset allocations	10.00%
Other Debt Obligations [Member] | Foreign Pension Plan [Member] | UNITED KINGDOM
Target asset allocations	3.00%
United States Pension Plan of US Entity [Member]
Target asset allocations	100.00%
Foreign Pension Plan [Member] | UNITED KINGDOM
Target asset allocations	100.00%