Segment Information - Schedule of Segment Results (Detail) (USD $)	3 Months Ended	9 Months Ended
Mar. 28, 2015	Mar. 29, 2014	Mar. 28, 2015	Mar. 29, 2014
Revenues:
Revenues	$ 14,114,000us-gaap_SalesRevenueNet	$ 15,121,000us-gaap_SalesRevenueNet	$ 40,313,000us-gaap_SalesRevenueNet	$ 43,280,000us-gaap_SalesRevenueNet
Segment operating income (loss):
Unallocated research, development and engineering and general and administrative expenses	(2,073,000)	(2,190,000)	(6,435,000)	(7,248,000)
Amortization of intangible assets	(61,000)us-gaap_AmortizationOfIntangibleAssets	(61,000)us-gaap_AmortizationOfIntangibleAssets	(183,000)us-gaap_AmortizationOfIntangibleAssets	(183,000)us-gaap_AmortizationOfIntangibleAssets
Operating income (loss)	(1,092,000)us-gaap_OperatingIncomeLoss	266,000us-gaap_OperatingIncomeLoss	(3,281,000)us-gaap_OperatingIncomeLoss	173,000us-gaap_OperatingIncomeLoss
Interest Income (Expense)	(11,000)us-gaap_InterestIncomeExpenseNet	12,000us-gaap_InterestIncomeExpenseNet	(11,000)us-gaap_InterestIncomeExpenseNet	7,000us-gaap_InterestIncomeExpenseNet
Foreign currency exchange gain (loss)	(291,000)	140,000	(387,000)	201,000
Income (loss) before income taxes	(1,394,000)	418,000	(3,679,000)	381,000
Operating Segments [Member]
Segment operating income (loss):
Operating income (loss)	1,042,000	2,517,000	3,337,000	7,604,000
Robotics [Member] \| Operating Segments [Member]
Revenues:
Revenues	11,175,000	11,973,000	31,297,000	33,714,000
Segment operating income (loss):
Operating income (loss)	64,000	1,330,000	320,000	3,879,000
Services and Support [Member] \| Operating Segments [Member]
Revenues:
Revenues	2,939,000	3,148,000	9,016,000	9,566,000
Segment operating income (loss):
Operating income (loss)	$ 978,000	$ 1,187,000	$ 3,017,000	$ 3,725,000

Unallocated research development and engineering and selling general and administrative expenses.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

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The net amount of operating interest income (expense).

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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