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. 27, 2014	Dec. 28, 2013	Dec. 27, 2014	Dec. 28, 2013
Income Statement [Abstract]
Revenues	$ 11,797	$ 14,588	$ 26,199	$ 28,159
Cost of revenues	6,737	7,749	14,696	15,058
Gross margin	5,060	6,839	11,503	13,101
Operating expenses:
Research, development and engineering	1,876	1,851	3,372	3,406
Selling, general and administrative	5,136	4,778	9,938	9,666
Settlement of litigation, net	260		260
Amortization of other intangible assets	61	61	122	122
Total operating expenses	7,333	6,690	13,692	13,194
Operating income (loss)	(2,273)	149	(2,189)	(93)
Interest expense, net				(5)
Foreign currency exchange gain (loss)	(174)	157	(96)	61
Income (loss) before income taxes	(2,447)	306	(2,285)	(37)
Provision for (benefit from) income taxes	(90)	102	(10)	157
Net income (loss)	(2,357)	204	(2,275)	(194)
Effects of redeemable convertible preferred stock:
Accretion of preferred stock to redemption value		(24)		(48)
Dividends allocated to preferred stockholders		(80)		(160)
Net income (loss) attributable to common stockholders	(2,357)	100	(2,275)	(402)
Net income (loss) per share attributable to common stockholders:
Basic	$ (0.18)	$ 0.01	$ (0.17)	$ (0.04)
Diluted	$ (0.18)	$ 0.01	$ (0.17)	$ (0.04)
Number of shares used in computing net income (loss) per share attributable to common stockholders
Basic	13,090	11,025	13,074	10,940
Diluted	13,090	13,334	13,074	10,940
Comprehensive income (loss):
Net income (loss)	(2,357)	204	(2,275)	(194)
Foreign currency translation adjustment	47	(55)	(237)	258
Total comprehensive income (loss)	$ (2,310)	$ 149	$ (2,512)	$ 64