Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Net Sales	$ 21,442	$ 19,269
Cost of Sales	13,150	11,619
Gross Profit	8,292	7,650
Operating Expenses
Selling, general and administrative	4,635	4,424
Engineering, research and development	2,198	1,733
Severance, impairment and other charges	0	(52)
Total operating expenses	6,833	6,105
Operating Income	1,459	1,545
Other Income and (Expenses)
Interest expense, net	(27)	(42)
Foreign currency loss, net	(202)	(22)
Other income (expenses), net	0	30
Total other income and (expenses)	(229)	(34)
Income Before Income Taxes	1,230	1,511
Income Tax (Expense) Benefit	(338)	47
Net Income	$ 892	$ 1,558
Income Per Common Share
Basic	$ 0.09	$ 0.16
Diluted	$ 0.09	$ 0.16
Weighted Average Common Shares Outstanding
Basic	9,560	9,453
Dilutive effect of stock options	212	49
Diluted	9,772	9,502