Note 5. Commitments and Contingent Liabilities - Product Warranty (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Product Warranty Liability at the beginning of the period	$ 1,992	$ 2,351
Additions to warranty accrual (including changes in estimates)	313	213
Settlements made (in cash or in kind)	(146)	(306)
Product Warranty Liability at the end of the period	$ 2,159	$ 2,258