Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 28, 2013	Dec. 29, 2012
Income Statement [Abstract]
Revenues	$ 14,588	$ 10,808	$ 28,159	$ 22,178
Cost of revenues	7,749	7,375	15,058	14,036
Gross margin	6,839	3,433	13,101	8,142
Operating expenses:
Research, development and engineering	1,851	1,909	3,406	4,039
Selling, general and administrative	4,778	4,630	9,666	9,787
Restructuring charges		392		395
Amortization of other intangible assets	61	116	122	233
Impairment of intangible assets and goodwill		1,708		1,708
Total operating expenses	6,690	8,755	13,194	16,162
Operating income (loss)	149	(5,322)	(93)	(8,020)
Interest expense, net		(40)	(5)	(49)
Foreign currency exchange gain (loss)	157	262	61	(104)
Income (loss) before income taxes	306	(5,100)	(37)	(8,173)
Provision for income taxes	102	115	157	102
Net income (loss)	204	(5,215)	(194)	(8,275)
Effects of redeemable convertible preferred stock:
Accretion of preferred stock to redemption value	(24)	(25)	(48)	(25)
Dividends allocated to preferred stockholders	(80)	(80)	(160)	(80)
Net income (loss) attributable to common stockholders	100	(5,320)	(402)	(8,380)
Net income (loss) per share attributable to common stockholders:
Basic	$ 0.01	$ (0.50)	$ (0.04)	$ (0.80)
Diluted	$ 0.01	$ (0.50)	$ (0.04)	$ (0.80)
Number of shares used in computing net income (loss) per share attributable to common stockholders
Basic	11,025	10,652	10,940	10,452
Diluted	13,334	10,652	10,940	10,452
Comprehensive income (loss):
Net income (loss)	204	(5,215)	(194)	(8,275)
Foreign currency translation adjustment	(55)	74	258	571
Total comprehensive income (loss)	$ 149	$ (5,141)	$ 64	$ (7,704)