Note 15. Postemployment Benefits (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Components of Net Periodic Benefit Cost (before tax):
Service cost	$ 126	$ 127
Interest cost	19	23
Amortization of actuarial income	(88)	(99)
Net periodic benefit cost	$ 57	$ 51