Note 11 - Retirement Benefits (Details Textual) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Pension Plan [Member]
Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year			$ 1.4
Defined Benefit Plan, Contributions by Employer	$ 0.3	$ 0.6	1.0	$ 1.1
Foreign Pension Plan [Member] | UNITED KINGDOM
Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year			0.9
Foreign Pension Plan [Member] | GERMANY
Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year			0.3
United States Pension Plan of US Entity [Member] | UNITED STATES
Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year			$ 0.2