The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 2

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.2(a),(d))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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- Definition

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

+ References

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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Segment, Customer Concentration and Geographical Information - Revenues Generated by Each Business Unit (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue from External Customer [Line Items]
Total revenues	$ 10,544us-gaap_SalesRevenueNet	$ 9,448us-gaap_SalesRevenueNet	$ 8,528us-gaap_SalesRevenueNet	$ 8,449us-gaap_SalesRevenueNet	$ 11,843us-gaap_SalesRevenueNet	$ 8,746us-gaap_SalesRevenueNet	$ 10,484us-gaap_SalesRevenueNet	$ 11,602us-gaap_SalesRevenueNet	$ 36,979us-gaap_SalesRevenueNet	$ 42,675us-gaap_SalesRevenueNet	$ 43,329us-gaap_SalesRevenueNet
Cost of revenues									9,317us-gaap_CostOfGoodsAndServicesSold	9,707us-gaap_CostOfGoodsAndServicesSold	8,448us-gaap_CostOfGoodsAndServicesSold
Gross profit	8,309us-gaap_GrossProfit	7,247us-gaap_GrossProfit	6,077us-gaap_GrossProfit	6,029us-gaap_GrossProfit	9,473us-gaap_GrossProfit	6,254us-gaap_GrossProfit	8,083us-gaap_GrossProfit	9,158us-gaap_GrossProfit	27,662us-gaap_GrossProfit	32,968us-gaap_GrossProfit	34,881us-gaap_GrossProfit
Wireless [Member]
Revenue from External Customer [Line Items]
Total revenues									31,276	35,853	37,154
Productivity & Graphics [Member]
Revenue from External Customer [Line Items]
Total revenues									$ 5,703	$ 6,822	$ 6,175