Basis of Presentation Change in Accounting Principle (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Net other periodic post-employment costs	$ 61	$ 200	$ 121	$ 401
Adjustments for New Accounting Pronouncement [Member]
Net other periodic post-employment costs		$ 200		$ 401