Pensions (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Net Periodic Benefit Cost
Interest cost	$ 15	$ 19	$ 45	$ 55
Expected return on plan assets	(2)	(2)	(4)	(7)
Recognized actuarial loss	17	16	49	48
Net periodic benefit cost	$ 30	$ 33	$ 90	$ 96