Segment Information - Schedule of Segment Results (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 28, 2013	Dec. 29, 2012
Revenues:
Revenues	$ 14,588	$ 10,808	$ 28,159	$ 22,178
Segment operating income (loss):
Unallocated research, development and engineering and general and administrative expenses	(2,343)	(2,458)	(5,058)	(5,282)
Restructuring charges		(392)		(395)
Amortization of intangible assets	(61)	(116)	(122)	(233)
Impairment of intangibles and goodwill		(1,708)		(1,708)
Operating income (loss)	149	(5,322)	(93)	(8,020)
Net interest expense		(40)	(5)	(49)
Foreign currency exchange gain (loss)	157	262	61	(104)
Income (loss) before income taxes	306	(5,100)	(37)	(8,173)
Operating Segments [Member]
Segment operating income (loss):
Operating income (loss)	2,553	(648)	5,087	(402)
Robotics [Member] | Operating Segments [Member]
Revenues:
Revenues	11,384	8,199	21,741	17,051
Segment operating income (loss):
Operating income (loss)	1,373	(1,190)	2,549	(1,834)
Services and Support [Member] | Operating Segments [Member]
Revenues:
Revenues	3,204	2,609	6,418	5,127
Segment operating income (loss):
Operating income (loss)	$ 1,180	$ 542	$ 2,538	$ 1,432