Pensions (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Net Periodic Benefit Cost
Interest cost	$ 15	$ 18	$ 30	$ 36
Expected return on plan assets	(1)	(2)	(2)	(8)
Recognized actuarial loss	16	16	32	41
Net periodic benefit cost	$ 30	$ 32	$ 60	$ 69