Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Consolidated Statements Of Operations [Abstract]
Net Sales	$ 16,325	$ 18,082	$ 55,596	$ 50,361
Cost of Sales	11,135	12,880	36,388	35,638
Gross Profit	5,190	5,202	19,208	14,723
Operating Expenses
Selling, general and administrative	4,039	4,702	12,795	15,358
Engineering, research and development	1,650	1,740	4,917	5,938
Severance, impairment and other charges	3	2,567	720	2,567
Total operating expenses	5,692	9,009	18,432	23,863
Operating Income (Loss)	(502)	(3,807)	776	(9,140)
Other Income and (Expenses)
Interest expense, net	(94)	(46)	(212)	(92)
Foreign currency (loss) gain, net	118	158	(226)	217
Other income, net	4	12	28	157
Total other (expense) income	28	124	(410)	282
Income (Loss) Before Income Taxes	(474)	(3,683)	366	(8,858)
Income Tax (Expense) Benefit	(124)	818	(795)	2,339
Net Income (Loss)	$ (598)	$ (2,865)	$ (429)	$ (6,519)
Income (Loss) Per Common Share
Basic	$ (0.06)	$ (0.31)	$ (0.05)	$ (0.70)
Diluted	$ (0.06)	$ (0.31)	$ (0.05)	$ (0.70)
Weighted Average Common Shares Outstanding
Basic	9,400	9,351	9,384	9,351
Dilutive effect of stock options
Diluted	9,400	9,351	9,384	9,351