Expiration date of OEM Distribution agreements for embedded operating systems.

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Number of customer account as major customer.

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Number of oem distribution agreements for embedded operating systems.

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Number of oem distribution agreements for mobile operating systems.

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Distribution agreement mobile operating systems expiration date one.

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Revenue recognition under rebates program.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Significant Risk Concentrations - Additional Information (Detail)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2015 USD ($) Customer	Jun. 30, 2014 USD ($) Customer	Jun. 30, 2015 USD ($) Customer Agreement	Jun. 30, 2014 USD ($) Customer	Dec. 31, 2014 Customer
Concentration Risk [Line Items]
Total revenue	$ 28,873,000	$ 23,055,000	$ 55,138,000	$ 45,786,000
Expiration date one of OEM Distribution agreements for embedded operating systems			Jun. 30, 2016
Number of OEM Distribution agreements for embedded operating systems \| Agreement			2
Expiration date of OEM Distribution agreements for mobile operating systems, non-EMEA			Jun. 30, 2015
Number of OEM Distribution agreements for mobile operating systems \| Agreement			4
Cost of revenue-service [Member]
Concentration Risk [Line Items]
Earnings under the rebate program	103,000	105,000	$ 166,000	169,000
Reduction in marketing expense in the future [Member]
Concentration Risk [Line Items]
Earnings under the rebate program	240,000	$ 245,000	$ 387,000	394,000
Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Total revenue	$ 3,900,000			$ 7,900,000
Revenue [Member] \| Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Number of customer account as major customer \| Customer	1			1
Concentration risk, percentage	13.00%			14.00%
Revenue [Member] \| Customer accounted for 10% or more [Member] \| Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Number of customer account as major customer \| Customer	0	0	0	0
Concentration risk, percentage	10.00%	10.00%	10.00%	10.00%
Accounts receivable [Member] \| Customer accounted for 10% or more [Member] \| Credit Concentration Risk [Member]
Concentration Risk [Line Items]
Number of customer account as major customer \| Customer			1		0
Accounts receivable [Member] \| Customer accounted for 10% or more [Member] \| Credit Concentration Risk [Member] \| Minimum [Member]
Concentration Risk [Line Items]
Concentration risk, percentage			10.00%		10.00%