Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Consolidated Statements Of Operations [Abstract]
Net Sales	$ 69,135	$ 74,405	$ 59,612
Cost of Sales	47,996	46,134	34,763
Gross Profit	21,139	28,271	24,849
Operating Expenses
Selling, general and administrative	20,316	20,397	15,216
Engineering, research and development	7,381	7,911	6,691
Severance, impairment and other charges	2,826
Total operating expenses	30,523	28,308	21,907
Operating (Loss) Inocme	(9,384)	(37)	2,942
Other Income and (Expenses)
Interest income (expense), net	(148)	138	188
Foreign currency income (loss), net	144	(1,186)	(127)
Other income and (expense), net	171	250	(1)
Total other income (expense)	167	(798)	60
(Loss) Income Before Income Taxes	(9,217)	(835)	3,002
Income Tax (Expense) Benefit	(12,896)	374	(575)
Net (Loss) Income	$ (22,113)	$ (461)	$ 2,427
Net (Loss) Income Per Common Share - Basic	$ (2.36)	$ (0.05)	$ 0.27
Net (Loss) Income Per Common Share - Diluted	$ (2.36)	$ (0.05)	$ 0.26
Weighted Average Common Shares Outstanding
Basic	9,360	9,252	8,983
Dilutive effect of stock options			227
Diluted	9,360	9,252	9,210