Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Consolidated Statements Of Operations [Abstract]
Net Sales	$ 21,751	$ 17,211	$ 39,271	$ 32,279
Cost of Sales	12,307	12,116	25,253	22,758
Gross Profit	9,444	5,095	14,018	9,521
Operating Expenses
Selling, general and administrative	4,469	5,386	8,756	10,656
Engineering, research and development	1,657	1,970	3,267	4,198
Severance, impairment and other charges	61		717
Total operating expenses	6,187	7,356	12,740	14,854
Operating Income (Loss)	3,257	(2,261)	1,278	(5,333)
Other Income and (Expenses)
Interest expense, net	(61)	(25)	(118)	(46)
Foreign currency (loss) gain, net	(393)	58	(344)	59
Other income, net	23	86	24	145
Total other (expense) income	(431)	119	(438)	158
Income (Loss) Before Income Taxes	2,826	(2,142)	840	(5,175)
Income Tax (Expense) Benefit	(302)	596	(671)	1,521
Net Income (Loss)	$ 2,524	$ (1,546)	$ 169	$ (3,654)
Income (Loss) Per Common Share
Basic	$ 0.27	$ (0.17)	$ 0.02	$ (0.39)
Diluted	$ 0.27	$ (0.17)	$ 0.02	$ (0.39)
Weighted Average Common Shares Outstanding
Basic	9,381	9,351	9,376	9,351
Dilutive effect of stock options	35		33
Diluted	9,416	9,351	9,409	9,351