Immersion (IMMR) 10-Q 31 Oct 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Oct. 23, 2014
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Trading Symbol	'IMMR	'
Entity Registrant Name	'IMMERSION CORP	'
Entity Central Index Key	'0001058811	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	27,678,578

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$10,139	$14,136
Short-term investments	52,989	56,976
Accounts and other receivables (net of allowances for doubtful accounts of $15 and $9)	2,992	598
Deferred income taxes	7,784	7,784
Prepaid expenses and other current assets	1,085	690
Total current assets	74,989	80,184
Property and equipment, net	1,280	944
Deferred income tax assets	27,527	29,066
Intangibles and other assets, net	299	381
Total assets	104,095	110,575
Current liabilities:	'	'
Accounts payable	1,019	682
Accrued compensation	1,665	4,680
Other current liabilities	1,483	1,653
Deferred revenue	13,007	8,920
Total current liabilities	17,174	15,935
Long-term deferred revenue	9,018	13,441
Other long-term liabilities	451	528
Total liabilities	26,643	29,904
Contingencies (Note 12)	'	'
Stockholders' equity:	'	'
Common stock and additional paid-in capital - $0.001 par value; 100,000,000 shares authorized; 34,188,969 and 33,619,766 shares issued, respectively; 28,055,082 and 28,637,022 shares outstanding, respectively	203,725	198,057
Accumulated other comprehensive income	117	112
Accumulated deficit	-83,823	-86,929
Treasury stock at cost: 6,133,887 and 4,982,744 shares, respectively	-42,567	-30,569
Total stockholders' equity	77,452	80,671
Total liabilities and stockholders' equity	$104,095	$110,575

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Allowances for doubtful accounts	$15	$9
Common stock, par value	$0.00	$0.00
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	34,188,969	33,619,766
Common stock, shares outstanding	28,055,082	28,637,022
Treasury stock, shares	6,133,887	4,982,744

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Income and Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenues:	'	'	'	'
Royalty and license	$11,714	$10,951	$38,473	$34,580
Product sales	0	12	0	44
Development, services, and other	337	379	845	779
Total revenues	12,051	11,342	39,318	35,403
Costs and expenses:	'	'	'	'
Cost of revenues (exclusive of amortization of intangibles shown separately below)	104	111	325	386
Sales and marketing	2,238	2,151	7,638	6,692
Research and development	2,718	2,640	8,782	7,876
General and administrative	5,274	5,606	17,745	17,433
Amortization of intangibles	15	20	55	60
Total costs and expenses	10,349	10,528	34,545	32,447
Operating income	1,702	814	4,773	2,956
Interest and other income (expense)	-30	42	107	80
Income before provision for income taxes	1,672	856	4,880	3,036
Provision for income taxes	-599	-257	-1,774	-284
Net income	1,073	599	3,106	2,752
Basic net income per share	$0.04	$0.02	$0.11	$0.10
Shares used in calculating basic net income per share	28,505	28,558	28,420	28,047
Diluted net income per share	$0.04	$0.02	$0.11	$0.09
Shares used in calculating diluted net income per share	29,351	29,653	29,355	29,205
Other Comprehensive Income	'	'	'	'
Change in unrealized gains on short-term investments	3	10	5	6
Total Other Comprehensive Income	3	10	5	6
Total Comprehensive Income	$1,076	$609	$3,111	$2,758

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Cash flows provided by operating activities:	'	'
Net income	$3,106	$2,752
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization of property and equipment	364	459
Amortization of intangibles	55	60
Stock-based compensation	4,058	3,438
Allowance (recovery) for doubtful accounts	3	7
Loss on disposal of equipment	19	12
Changes in operating assets and liabilities:	'	'
Accounts and other receivables	-2,397	1,577
Inventories	0	141
Deferred income taxes	1,539	0
Prepaid expenses and other current assets	-395	-164
Other assets	-20	-58
Accounts payable	337	281
Accrued compensation and other current liabilities	-3,209	1,206
Income taxes payable	35	0
Deferred revenue	-336	5,076
Other long-term liabilities	-77	-68
Net cash provided by operating activities	3,082	14,719
Cash flows provided by (used in) investing activities:	'	'
Purchases of available-for-sale investments	-37,960	-71,955
Proceeds from maturities of available-for-sale investments	42,000	63,000
Purchases of property and equipment	-734	-174
Net cash provided by (used in) investing activities	3,306	-9,129
Cash flows provided by (used in) financing activities:	'	'
Issuance of common stock under employee stock purchase plan	381	198
Exercise of stock options	1,229	6,318
Purchases of treasury stock	-11,995	0
Net cash provided by (used in) financing activities	-10,385	6,516
Net increase (decrease) in cash and cash equivalents	-3,997	12,106
Cash and cash equivalents:	'	'
Beginning of period	14,136	4,558
End of period	10,139	16,664
Supplemental disclosure of cash flow information	'	'
Cash paid for taxes	46	13
Supplemental disclosure of noncash operating, investing, and financing activities	'	'
Amounts accrued for property and equipment	8	0
Amounts accrued for purchase of treasury stock	3	0
Release of Restricted Stock Units and Awards under company stock plan	$3,745	$3,183

Significant_Accounting_Policie

Significant Accounting Policies	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Significant Accounting Policies	'
	1	SIGNIFICANT ACCOUNTING POLICIES
	Description of Business
	Immersion Corporation (the “Company”) was incorporated in 1993 in California and reincorporated in Delaware in 1999. It is an intellectual property (“IP”) and technology licensing company focused on the creation, design, development, and licensing of innovations and technologies that allow people to use their sense of touch more fully when operating a wide variety of digital devices.
	Principles of Consolidation and Basis of Presentation
	The condensed consolidated financial statements include the accounts of Immersion Corporation and its wholly-owned subsidiaries: Immersion Canada Inc.; Immersion International, LLC; Immersion Medical, Inc.; Immersion Japan K.K.; Immersion Ltd.; Immersion Software Ireland Ltd.; Haptify, Inc.; and Immersion (Shanghai) Science & Technology Company, Ltd. All intercompany accounts, transactions, and balances have been eliminated in consolidation.
	The accompanying condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions for Form 10-Q and Article 10 of Regulation S-X and, therefore, do not include all information and footnotes necessary for a complete presentation of the financial position, results of operations, and cash flows, in conformity with GAAP. These condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements included in the Company’s Annual Report on Form 10-K, for the fiscal year ended December 31, 2013. In the opinion of management, all adjustments consisting of only normal and recurring items necessary for the fair presentation of the financial position and results of operations for the interim periods presented have been included.
	The results of operations for the three months and nine months ended September 30, 2014 are not necessarily indicative of the results to be expected for the full year.
	Segment Information
	The Company develops, licenses, and supports a wide range of software and IP that more fully engage users’ sense of touch when operating digital devices. The Company focuses on the following target application areas: mobility and consumer electronics, automotive, gaming, commercial and industrial, and medical. The Company’s chief operating decision maker (“CODM”) is the Chief Executive Officer. The CODM allocates resources to and assesses the performance of the Company using information about its financial results as one operating and reporting segment.
	Intangible Assets
	During the fourth quarter 2013, the Company elected to change its method of accounting for external patent-related costs associated with its internally developed patents and trademarks. Prior to the change the Company capitalized the external legal, filing, continuation or annuity fees associated with patent and trademark applications. These costs were amortized on a straight-line basis over their estimated economic useful lives which were generally ten years from the date of issuance. Under the current method of accounting, external patent-related costs are expensed as incurred and classified as general and administrative expenses in the Company’s condensed consolidated statement of income consistent with the classification of internal legal costs associated with internally developed patents and trademarks. Costs associated with acquired patents and other intangible assets continue to be capitalized as incurred. These costs are amortized utilizing the straight-line method, which approximates the pattern of consumption over the estimated useful lives of the respective assets, generally ten years.
	In accordance with Accounting Standards Codification (“ASC”) 250, “Accounting Changes and Error Corrections,” the change in accounting method has been retrospectively applied to all prior periods presented herein. Comparative financial statements of prior years have been adjusted to apply the new method retrospectively.
	Revenue Recognition
	The Company recognizes revenues in accordance with applicable accounting standards, including ASC 605-10-S99, “Revenue Recognition” (“ASC 605-10-S99”); ASC 605-25, “Multiple Element Arrangements” (“ASC 605-25”); and ASC 985-605, “Software-Revenue Recognition” (“ASC 985-605”). The Company derives its revenues from three principal sources: royalty and license fees, development contract and service fees, and, previously, product sales. As described below, management judgments, assumptions, and estimates must be made and used in connection with the revenue recognized in any accounting period. Material differences may result in the amount and timing of revenue for any period based on the judgments and estimates made by management. Specifically, in connection with each transaction, the Company must evaluate whether: (i) persuasive evidence of an arrangement exists, (ii) delivery has occurred, (iii) the fee is fixed or determinable, and (iv) collectibility is probable. The Company applies these criteria as discussed below.
		•	Persuasive evidence of an arrangement exists. For a license arrangement, the Company requires a written contract, signed by both the customer and the Company. For a stand-alone product sale, the Company requires a purchase order or other form of written agreement with the customer.
		•	Delivery has occurred. The Company delivers software and product to customers physically and also delivers software electronically. For physical deliveries not related to software, the transfer terms typically include transfer of title and risk of loss at the Company’s shipping location. For electronic deliveries, delivery occurs when the Company provides the customer access codes or “keys” that allow the customer to take immediate possession of the software.
		•	The fee is fixed or determinable. The Company’s arrangement fee is based on the use of standard payment terms, which are those that are generally extended to the majority of customers. For transactions involving extended payment terms, the Company deems these fees not to be fixed or determinable for revenue recognition purposes and revenue is deferred until the fees become due and payable.
		•	Collectibility is probable. To recognize revenue, the Company must judge collectibility of fees, which is done on a customer-by-customer basis pursuant to the Company’s credit review policy. The Company typically sells to customers with whom there is a history of successful collection. For new customers, the Company evaluates the customer’s financial condition and ability to pay. If it is determined that collectibility is not probable based upon the credit review process or the customer’s payment history, revenue is recognized when payment is received.
	Royalty and license revenue — The Company licenses its patents and software to customers in a variety of industries such as mobility, gaming, automotive, and medical devices. Certain of these are variable fee arrangements where the royalties earned by the Company are based on unit or sales volumes of the respective licensees. The Company also enters into fixed license fee arrangements. The terms of the royalty agreements generally require licensees to give notification of royalties due to the Company within 30 – 45 days of the end of the quarter during which their related sales occur. As the Company is unable to reliably estimate the licensees’ sales in any given quarter to determine the royalties due to it, the Company recognizes royalty revenues based on royalties reported by licensees and when all revenue recognition criteria are met. Certain royalties are based upon customer shipments or revenues and could be subject to change and may result in out of period adjustments. The Company recognizes fixed license fee revenue for licenses when earned under the terms of the agreements, which is generally recognized on a straight-line basis over the expected term of the license.
	Development, services, and other revenue — Development, services, and other revenue are composed of engineering services (engineering services and/or development contracts), and in limited cases, post contract customer support (“PCS”). Engineering services revenues are recognized under the proportional performance accounting method based on physical completion of the work to be performed or completed performance method. A provision for losses on contracts is made, if necessary, in the period in which the loss becomes probable and can be reasonably estimated. Revisions in estimates are reflected in the period in which the conditions become known. To date, such losses have not been significant. Revenue from PCS is typically recognized over the period of the ongoing obligation, which is generally consistent with the contractual term.
	Multiple element arrangements — The Company enters into multiple element arrangements in which customers purchase time-based non-exclusive licenses that cannot be resold to others, which include a combination of software and/or IP licenses, engineering services, and in limited cases PCS. For arrangements that are software based and include software and engineering services, the services are generally not essential to the functionality of the software, and customers may purchase engineering services to facilitate the adoption of the Company’s technology, but they may also decide to use their own resources or appoint other engineering service organizations to perform these services. For arrangements that are in substance subscription arrangements, the entire arrangement fee is recognized ratably over the contract term, subject to any limitations related to extended payment terms. For arrangements involving upfront fees for services and royalties earned by the Company based on unit or sales volumes of the respective licensees, and the services are performed ratably over the arrangement or front-end loaded; the upfront fees are recognized ratably over the contract term and royalties based on unit or sales volume are recognized when they become fixed and determinable. As the Company is unable to reliably estimate the licensees’ sales in any given quarter to determine the royalties due to it, the Company recognizes per unit or sales volume driven royalty revenues based on royalties reported by licensees and when all revenue recognition criteria are met.
	Product sales — The Company recognizes revenue from the sale of products and the license of associated software, if any, and expenses all related costs of products sold, once delivery has occurred and customer acceptance, if required, has been achieved. The Company typically grants to customers a warranty that guarantees the products will substantially conform to the Company’s current specifications for generally three to twelve months from the delivery date pursuant to the terms of the arrangement. Historically, warranty-related costs have not been significant.
	Recent Accounting Pronouncements
	In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09 “Revenue from Contracts with Customers: Topic 606” (“ASU 2014-09”) which will supersede the current revenue recognition requirements in Topic 605, Revenue Recognition, and most industry-specific guidance. The core principle of ASU 2014-09 is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Further, the guidance requires improved disclosures to help users of financial statements better understand the nature, amount, timing, and uncertainty of revenue that is recognized. ASU 2014-09 is effective for reporting periods beginning after December 15, 2016, and permits companies to either apply the requirements retrospectively to all prior periods presented, or apply the requirements in the year of adoption, through a cumulative adjustment. The Company is required to adopt ASU 2014-09 as of January 1, 2017, and is in the process of determining the method of adoption and evaluating the impact on its consolidated financial statements.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	2	FAIR VALUE MEASUREMENTS
	Cash Equivalents and Short-term Investments
	The financial instruments of the Company measured at fair value on a recurring basis are cash equivalents and short-term investments.
	The Company’s fixed income available-for-sale securities consist of high quality, investment grade securities. The Company values these securities based on pricing from pricing vendors, who may use quoted prices in active markets for identical assets (Level 1) or inputs other than quoted prices that are observable either directly or indirectly (Level 2) in determining fair value.
	The types of instruments valued based on quoted market prices in active markets include most money market securities. Such instruments are generally classified within Level 1 of the fair value hierarchy.
	The types of instruments valued based on quoted prices in markets that are less active, broker or dealer quotations, or alternative pricing sources with reasonable levels of price transparency are generally classified within Level 2 of the fair value hierarchy and include most U.S. treasury securities and most investment-grade corporate commercial paper.
	The types of instruments valued based on unobservable inputs which reflect the reporting entity’s own assumptions or data that market participants would use in valuing an instrument are generally classified within Level 3 of the fair value hierarchy.
	Financial instruments measured at fair value on a recurring basis as of September 30, 2014 and December 31, 2013 are classified based on the valuation technique in the table below:
			September 30, 2014
			Fair value measurements using
			Quoted Prices in		Significant		Significant		Total
			Active Markets		Other		Unobservable
			for Identical		Observable		Inputs
			Assets		Inputs		(Level 3)
			(Level 1)		(Level 2)
			(In thousands)
	Assets:
	U.S. Treasury securities		$	0	$	52,989	$	0	$	52,989
	Money market accounts			7,029		0		0		7,029
	Total assets at fair value		$	7,029	$	52,989	$	0	$	60,018
	The above table excludes $3.1 million of cash held in banks.
			December 31, 2013
			Fair value measurements using
			Quoted Prices in		Significant		Significant		Total
			Active Markets		Other		Unobservable
			for Identical		Observable		Inputs
			Assets		Inputs		(Level 3)
			(Level 1)		(Level 2)
			(In thousands)
	Assets:
	U.S. Treasury securities		$	0	$	56,976	$	0	$	56,976
	Money market accounts			10,075		0		0		10,075
	Total assets at fair value		$	10,075	$	56,976	$	0	$	67,051
	The above table excludes $4.1 million of cash held in banks.
	Short-term Investments
			September 30, 2014
			Amortized		Gross		Gross		Fair
			Cost		Unrealized		Unrealized		Value
					Holding		Holding
					Gains		Losses
			(In thousands)
	U.S. Treasury securities		$	52,973	$	16	$	0	$	52,989
	Total		$	52,973	$	16	$	0	$	52,989
			December 31, 2013
			Amortized		Gross		Gross		Fair
			Cost		Unrealized		Unrealized		Value
					Holding		Holding
					Gains		Losses
			(In thousands)
	U.S. Treasury securities		$	56,966	$	10	$	0	$	56,976
	Total		$	56,966	$	10	$	0	$	56,976
	The contractual maturities of the Company’s available-for-sale securities on September 30, 2014 and December 31, 2013 were all due within one year.

Accounts_and_Other_Receivables

Accounts and Other Receivables	9 Months Ended
	Sep. 30, 2014
Receivables [Abstract]	'
Accounts and Other Receivables	'
	3	ACCOUNTS AND OTHER RECEIVABLES
			September 30,		December 31,
			2014		2013
			(In thousands)
	Trade accounts receivable		$	2,471	$	320
	Receivables from vendors and other			521		278
	Accounts and other receivables		$	2,992	$	598

Property_and_Equipment

Property and Equipment	9 Months Ended
	Sep. 30, 2014
Property, Plant and Equipment [Abstract]	'
Property and Equipment	'
	4	PROPERTY AND EQUIPMENT
			September 30,			December 31,
			2014			2013
			(In thousands)
	Computer equipment and purchased software		$	3,392		$	3,595
	Machinery and equipment			693			704
	Furniture and fixtures			827			607
	Leasehold improvements			1,297			938
	Total			6,209			5,844
	Less accumulated depreciation			(4,929	)		(4,900	)
	Property and equipment, net		$	1,280		$	944

Intangibles_and_Other_Assets

Intangibles and Other Assets	9 Months Ended
	Sep. 30, 2014
Text Block [Abstract]	'
Intangibles and Other Assets	'
	5	INTANGIBLES AND OTHER ASSETS
	Intangible amounts have been impacted by the Company’s change in accounting method for the treatment of external patent and trademark costs. The Company no longer capitalizes external legal, filing, and continuation or annuity fees associated with patent and trademark applications. Under the current method of accounting, these types of external patent-related costs are expensed as incurred and classified as general and administrative expenses in the Company’s condensed consolidated statement of income consistent with the treatment of internal legal expenses. Costs associated with purchased patents and other purchased intangible assets continue to be capitalized as incurred. See Note 1 to the condensed consolidated financial statements for additional information regarding this change in accounting method.
			September 30,			December 31,
			2014			2013
			(In thousands)
	Purchased patents and other purchased intangible assets		$	5,731		$	5,731
	Other assets			262			289
	Gross intangibles and other assets			5,993			6,020
	Accumulated amortization of purchased patents and other purchased intangible			(5,694	)		(5,639	)
	Intangibles and other assets, net		$	299		$	381
	The Company amortizes its intangible assets related to purchased patents, over their estimated useful lives, generally 10 years from the purchase date. Amortization of intangibles was as follows:
			Three Months Ended						Nine Months Ended
			September 30,						September 30,
			2014			2013			2014		2013
			(In thousands)						(In thousands)
	Amortization of intangibles		$	15		$	20		$	55	$	60
	The table below includes estimated remaining annual amortization expense for purchased patents as of September 30, 2014.
			Estimated
			Amortization
			Expense
			(In thousands)
	Remainder of 2014		$	11
	2015			20
	2016			6
	Total		$	37

Components_of_Other_Current_Li

Components of Other Current Liabilities	9 Months Ended
	Sep. 30, 2014
Text Block [Abstract]	'
Components of Other Current Liabilities	'
	6	COMPONENTS OF OTHER CURRENT LIABILITIES
			September 30,		December 31,
			2014		2013
			(In thousands)
	Accrued legal		$	735	$	780
	Income taxes payable			76		41
	Other current liabilities			672		832
	Total other current liabilities		$	1,483	$	1,653

Longterm_Deferred_Revenue

Long-term Deferred Revenue	9 Months Ended
	Sep. 30, 2014
Deferred Revenue Disclosure [Abstract]	'
Long-term Deferred Revenue	'
	7	LONG-TERM DEFERRED REVENUE
	Long-term deferred revenue consisted of the following:
			September 30,		December 31,
			2014		2013
			(In thousands)
	Deferred revenue for Sony Computer Entertainment		$	8,498	$	12,840
	Other deferred revenue			520		601
	Long-term deferred revenue		$	9,018	$	13,441
	Deferred revenue for Sony Computer Entertainment represents deferred license revenue where payments have been received in advance of revenue recognition.

Stockbased_Compensation

Stock-based Compensation	9 Months Ended
	Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Stock-based Compensation	'
	8	STOCK-BASED COMPENSATION
	Stock Options and Awards
	The Company’s equity incentive program is a long-term retention program that is intended to attract, retain, and provide incentives for talented employees, consultants, officers, and directors and to align stockholder and employee interests. The Company may grant options, stock appreciation rights, restricted stock, restricted stock units (“RSUs”), performance shares, performance units, and other stock-based or cash-based awards to employees, officers, directors, and consultants. Under this program, stock options may be granted at prices not less than the fair market value on the date of grant for stock options. These options generally vest over four years and expire from five to ten years from the date of grant. Restricted stock generally vests over one year. RSUs generally vest over three years. Awards granted other than an option or stock appreciation right reduce the common stock shares available for grant under the program by 1.75 shares for each share issued.
			September 30,
			2014
	Common stock shares available for grant			2,599,060
	Common stock options outstanding			3,278,096
	Restricted stock awards outstanding			35,364
	Restricted stock units outstanding			543,391
	Employee Stock Purchase Plan
	The Company has an Employee Stock Purchase Plan (“ESPP”). Under the ESPP, eligible employees may purchase common stock through payroll deductions at a purchase price of 85% of the lower of the fair market value of the Company’s stock at the beginning of the offering period or the purchase date. Participants may not purchase more than 2,000 shares in a six-month offering period or purchase stock having a value greater than $25,000 in any calendar year as measured at the beginning of the offering period. A total of 1,000,000 shares of common stock have been reserved for issuance under the ESPP. As of September 30, 2014, 557,738 shares had been purchased since the inception of the ESPP in 1999. Under ASC 718-10, the ESPP is considered a compensatory plan and the Company is required to recognize compensation cost related to the fair value of the award purchased under the ESPP. Shares purchased under the ESPP for the nine months ended September 30, 2014 are listed below. Shares purchased under the ESPP for the nine months ended September 30, 2013 are 36,921. The intrinsic value listed below is calculated as the difference between the market value on the date of purchase and the purchase price of the shares.
			Nine Months
			Ended
			September 30,
			2014
	Shares purchased under ESPP			38,298
	Average price of shares purchased under ESPP		$	9.95
	Intrinsic value of shares purchased under ESPP		$	107,000
	Summary of Standard Stock Options
	The following table sets forth the summary of standard option activity under the Company’s stock option plans for the nine months ended September 30, 2014 and year ended December 31, 2013:
			Nine Months			Year
			Ended			Ended
			September 30,			December 31,
			2014			2013
	Beginning outstanding balance			3,227,167			3,155,631
	Granted			331,380			1,058,700
	Exercised			(194,269	)		(956,633	)
	Forfeited and cancelled			(136,182	)		(30,531	)
	Ending outstanding balance			3,228,096			3,227,167
	Aggregate intrinsic value of options exercised		$	1,099,000		$	5,774,000
	Weighted average fair value of options granted			5.53			5.63
	The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying awards and the quoted price of the Company’s common stock for the options that were in-the-money.
	Information regarding these standard stock options outstanding at September 30, 2014 and December 31, 2013 is summarized below:
			Number of			Weighted			Weighted			Aggregate
			Shares			Average			Average			Intrinsic
						Exercise			Remaining			Value
						Price			Contractual			(In millions)
									Life (years)
	31-Dec-13
	Options outstanding			3,227,167		$	7.78			5.46		$	9.9
	Options vested and expected to vest using estimated forfeiture rates			2,994,044			7.61			5.41			9.6
	Options exercisable			1,774,546			6.67			4.95			7.5
	30-Sep-14
	Options outstanding			3,228,096		$	8.25			4.92		$	5
	Options vested and expected to vest using estimated forfeiture rates			3,083,395			8.14			4.88			5
	Options exercisable			1,973,156			7.14			4.46			4.6
	Summary of Market Condition Based Stock Options
	In 2014 the Company began granting options that are subject to both time-based vesting and a market condition. For these options, the closing price of the Company stock must exceed a certain level for a number of trading days within a specified timeframe or the options will be cancelled before the seven year life of the options. The following table sets forth the summary of the market-based option activity under the Company’s stock option plans for the nine months ended September 30, 2014:
			Nine Months
			Ended
			September 30,
			2014
	Beginning outstanding balance			0
	Granted			50,000
	Exercised			0
	Forfeited and cancelled			0
	Ending outstanding balance			50,000
	Aggregate intrinsic value of options exercised		$	0
	Weighted average fair value of options granted			5.71
	The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying awards and the quoted price of the Company’s common stock for the options that were in-the-money.
	Information regarding these market condition based stock options outstanding at September 30, 2014 is summarized below:
			Number of			Weighted			Weighted			Aggregate
			Shares			Average			Average			Intrinsic
			Exercise			Remaining			Value
			Price			Contractual			(In millions)
						Life (years)
September 30, 2014
Options outstanding			50,000		$	11.94			6.4		$	0
Options vested and expected to vest using estimated forfeiture rates			44,490			11.94			6.4			0
Options exercisable			0			0			0			0
Summary of Restricted Stock Units
RSU activity for the nine months ended September 30, 2014 and year ended December 31, 2013 was as follows:
		Nine Months			Year
		Ended			Ended
		September 30,			December 31,
		2014			2013
Beginning outstanding balance			668,056			708,651
Awarded			215,630			294,150
Released			(292,636	)		(303,882	)
Forfeited			(47,659	)		(30,863	)
Ending outstanding balance			543,391			668,056
Weighted average grant date fair value of RSUs granted		$	11.85		$	7.12
Total fair value of RSUs released			3,261,000			2,806,000
Total fair value of RSUs remaining unvested			4,662,000			6,934,000
Information regarding RSUs outstanding at September 30, 2014 and December 31, 2013 is summarized below:
		Number of			Weighted			Aggregate			Fair
		Shares			Average			Intrinsic			Value
					Remaining			Value			(In millions)
					Contractual			(In millions)
					Life (years)
December 31, 2013
RSUs outstanding			668,056			0.91		$	6.9		$	6.9
RSUs vested and expected to vest using estimated forfeiture rates			583,711			0.89			6.1
September 30, 2014
RSUs outstanding			543,391			0.95		$	4.7		$	4.7
RSUs vested and expected to vest using estimated forfeiture rates			471,343			0.91			4
Summary of Restricted Stock Awards
Restricted stock award activity for the nine months ended September 30, 2014 and year ended December 31, 2013 was as follows:
		Nine Months			Year
		Ended			Ended
		September 30,			December 31,
		2014			2013
Beginning outstanding balance			44,000			44,000
Awarded			35,364			44,000
Released			(44,000	)		(44,000	)
Forfeited			0			0
Ending outstanding balance			35,364			44,000
Weighted average grant date fair value of restricted stock awarded		$	10.97		$	14.09
Total fair value of restricted stock awards released			483,000			676,000
Stock Plan Assumptions
The assumptions used to value option grants under the Company’s stock plans were as follows:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
Standard Stock Options
Expected life (in years)			4.7			4.7			4.7			4.9
Volatility			57	%		64	%		57	%		68	%
Interest rate			1.5	%		1.3	%		1.4	%		0.8	%
Dividend yield			N/A			N/A			N/A			N/A
		Three Months Ended			Nine Months Ended
		September 30,			September 30,
		2014			2014
Market Condition Based Stock Options
Expected life (in years)			N/A			7
Volatility			N/A			66	%
Interest rate			N/A			2.2	%
Dividend yield			N/A			N/A
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
Employee Stock Purchase Plan
Expected life (in years)			0.5			0.5			0.5			0.5
Volatility			46	%		69	%		43	%		67	%
Interest rate			0.1	%		0.8	%		0.1	%		0.1	%
Dividend yield			N/A			N/A			N/A			N/A
Compensation Costs
Total stock-based compensation recognized in the condensed consolidated statements of income and comprehensive income is as follows:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
		(In thousands)						(In thousands)
Statement of Income Classifications
Sales and marketing		$	230		$	223		$	784		$	496
Research and development			265			231			1,008			807
General and administrative			636			795			2,266			2,135
Total		$	1,131		$	1,249		$	4,058		$	3,438
As of September 30, 2014, there was $7.2 million related to stock options, restricted stock awards, and RSUs of unrecognized compensation cost, adjusted for estimated forfeitures, granted to the Company’s employees and directors. This cost will be recognized over an estimated weighted-average period of approximately 2.95 years for standard options, 3.42 years for market condition based options, 1.51 years for RSUs, and 0.68 years for restricted stock awards. Total unrecognized compensation cost will be adjusted for future changes in estimated forfeitures.

Stockholders_Equity

Stockholders' Equity	9 Months Ended
	Sep. 30, 2014
Equity [Abstract]	'
Stockholders' Equity	'
	9	STOCKHOLDERS’ EQUITY
	Comprehensive Income
	In February 2013, the FASB ratified ASU 2013-02 “Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Comprehensive Income” (“ASU 2013-02”). ASU 2013-02 requires entities to disclose additional information about items reclassified out of accumulated other comprehensive income (“AOCI”) including AOCI balances by component and significant items reclassified out of AOCI. ASU 2013-02 was effective for reporting periods beginning after December 15, 2012, and was applied prospectively.
	The changes in accumulated other comprehensive income are included in the table below.
			Nine Months Ended September 30, 2014
			Unrealized Gains		Foreign		Total
			and Losses on		Currency
			Available-for Sale		Items
			Securities
			(In thousands)
	Beginning balance		$	11	$	101	$	112
	Other comprehensive income before reclassifications			5		0		5
	Amounts reclassified from accumulated other comprehensive income			0		0		0
	Net current period other comprehensive income			5		0		5
	Ending Balance		$	16	$	101	$	117
	Stock Repurchase Program
	On November 1, 2007, the Company announced its Board of Directors’ authorized the repurchase of up to $50 million of the Company’s common stock (“Stock Repurchase Program”). The Company may repurchase its stock for cash in the open market in accordance with applicable securities laws. The timing of and amount of any stock repurchase will depend on share price, corporate and regulatory requirements, economic and market conditions, and other factors. The stock repurchase authorization has no expiration date, does not require the Company to repurchase a specific number of shares, and may be modified, suspended, or discontinued at any time.
	During the three and nine months ended September 30, 2014, the Company repurchased 534,849 and 1,151,143 shares for $5.0 million and $12.0 million at an average cost of $9.36 and $10.42, respectively, net of transaction costs, through open market repurchases. These amounts are classified as treasury stock on the Company’s condensed consolidated balance sheet. As of September 30, 2014, the program remains available with approximately $7.4 million that may yet be purchased under it. During the three and nine months ended September 30, 2013 there were no stock repurchases under this program.

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2014
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	10	INCOME TAXES
	Income tax provisions consisted of the following:
			Three Months Ended						Nine Months Ended
			September 30,						September 30,
			2014			2013			2014			2013
			(In thousands)						(In thousands)
	Income before provision for income taxes		$	1,672		$	856		$	4,880		$	3,036
	Provision for income taxes			(599	)		(257	)		(1,774	)		(284	)
	Effective tax rate			35.8	%		30	%		36.4	%		9.4	%
	The provision for income tax for the three and nine months ended September 30, 2014 resulted primarily from the Company’s federal and foreign tax recognized at statutory rates, adjusted for the tax impact of nondeductible permanent items including stock-based compensation and foreign withholding taxes. The income tax provision for the three and nine months ended September 30, 2013 is primarily as a result of foreign taxes and foreign withholding tax expense.
	In July 2013, the FASB ratified ASU 2013-11, “Presenting an Unrecognized Tax Benefit (“UTB”) When a Net Operating Loss Carryforward Exists” (“ASU 2013-11”). ASU 2013-02 provides that an UTB, or a portion thereof, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except to the extent that a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date to settle any additional income taxes that would result from disallowance of a tax position, or the tax law does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, then the unrecognized tax benefit should be presented as a liability. ASU 2013-11 was effective for reporting periods beginning after December 15, 2013, and may be applied retrospectively. The impact was not significant on the Company’s condensed consolidated results of operations and financial condition.
	As of September 30, 2014, the Company had unrecognized tax benefits under ASC 740 “Income Taxes”, of approximately $1.7 million including interest of $71,000. The total amount of unrecognized tax benefits that would affect the Company’s effective tax rate, if recognized, was $270,000. There were no material changes in the amount of unrecognized tax benefits during the nine months ended September 30, 2014. The Company expects to release reserves and record a tax benefit due to the expiration of applicable statutes of limitations during the next twelve months. The Company’s policy is to account for interest and penalties related to uncertain tax positions as a component of income tax provision.
	Net deferred income taxes were $35.3 million as of September 30, 2014, consisting primarily of federal net operating loss carryforwards and timing differences between book and tax. Because the Company had net operating loss and credit carryforwards, there are open statutes of limitations in which federal, state, and foreign taxing authorities may examine the Company’s tax returns for all years from 1998 through the current period.
	The Company maintains a valuation allowance of $7.0 million against deferred tax assets, including state and certain foreign deferred tax assets. The Company has determined there is not sufficient evidence to support the release of the valuation allowance against these state and foreign deferred tax assets.

Net_Income_Per_Share

Net Income Per Share	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Net Income Per Share	'
	11	NET INCOME PER SHARE
	Basic net income per share is computed using the weighted average number of common shares outstanding for the period, excluding unvested restricted stock and RSUs. Diluted net income per share is based upon the weighted average common shares outstanding for the period plus dilutive potential shares including unvested restricted stock, RSUs, and stock options using the treasury stock method. The following is a reconciliation of the numerators and denominators used in computing basic and diluted net income per share:
			Three Months Ended				Nine Months Ended
			September 30,				September 30,
			2014		2013		2014		2013
			(in thousands except per share
			amounts)
	Numerator:
	Net income		$	1,073	$	599	$	3,106	$	2,752
	Denominator:
	Shares used in computation of basic net income per share (weighted average common shares outstanding)			28,505		28,558		28,420		28,047
	Dilutive potential common shares:
	Restricted Stock and RSUs			188		302		262		333
	Stock options			658		793		673		825
	Shares used in computation of diluted net income per share			29,351		29,653		29,355		29,205
	Basic net income per share		$	0.04	$	0.02	$	0.11	$	0.1
	Diluted net income per share		$	0.04	$	0.02	$	0.11	$	0.09
	For the three months and nine months ended September 30, 2014, options to purchase approximately 1.6 million and 1.5 million shares of common stock, respectively, with exercise prices greater than the average fair market value of the Company’s stock of $11.27 and $11.11 per share, respectively, were not included in the calculation because the effect would have been anti-dilutive.
	For the three months and nine months ended September 30, 2013, options to purchase approximately 1.2 million and 902,000 shares of common stock, respectively, with exercise prices greater than the average fair market value of the Company’s stock of $13.72 and $11.53 per share, respectively, were not included in the calculation because the effect would have been anti-dilutive.

Contingencies

Contingencies	9 Months Ended
	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Contingencies	'
	12	CONTINGENCIES
	In re Immersion Corporation Securities Litigation
	In September and October 2009, various putative shareholder class action and derivative complaints were filed in federal and state court against the Company and certain current and former Company directors and officers.
	On September 2, 2009, a securities class action complaint was filed in the U.S. District Court for the Northern District of California against the Company and certain of its current and former directors and officers. Over the following five weeks, four additional class action complaints were filed. (One of these four actions was later voluntarily dismissed.) The securities class action complaints name the Company and certain current and former Company directors and officers as defendants and allege violations of federal securities laws based on the Company’s issuance of allegedly misleading financial statements. The various complaints assert claims covering the period from May 2007 through July 2009 and seek compensatory damages allegedly sustained by the purported class members.
	On December 21, 2009, these class actions were consolidated by the court as In Re Immersion Corporation Securities Litigation. On the same day, the court appointed a lead plaintiff and lead plaintiff’s counsel. Following the Company’s restatement of its financial statements, the lead plaintiff filed a consolidated complaint on April 9, 2010. Defendants moved to dismiss the action on June 15, 2010 and that motion was granted with leave to amend on March 11, 2011. The lead plaintiff filed an amended complaint on April 29, 2011. Defendants moved to dismiss the amended complaint on July 1, 2011. On December 16, 2011, the motion to dismiss was granted with prejudice and on December 19, 2011, judgment was entered in favor of defendants. On January 13, 2012, the plaintiffs filed a notice of appeal to the Ninth Circuit Court of Appeals. In May 2012, plaintiff filed his opening appeals brief. On July 13, 2012, the Company filed its response brief. On September 4, 2012, plaintiff filed his reply. The Court heard oral argument on February 12, 2014 and took the matter under submission. On August 7, 2014, the Ninth Circuit Court of Appeals issued an opinion affirming the district court’s dismissal with prejudice.
	Other Contingencies
	From time to time, the Company receives claims from third parties asserting that the Company’s technologies, or those of its licensees, infringe on the other parties’ IP rights. Management believes that these claims are without merit. Additionally, periodically, the Company is involved in routine legal matters and contractual disputes incidental to its normal operations. In management’s opinion, the resolution of such matters will not have a material adverse effect on the Company’s condensed consolidated financial condition, results of operations, or liquidity.
	In the normal course of business, the Company provides indemnifications of varying scope to customers against claims of IP infringement made by third parties arising from the use of the Company’s IP, technology, or products. Historically, costs related to these guarantees have not been significant, and the Company is unable to estimate the maximum potential impact of these guarantees on its future results of operations.

Significant_Accounting_Policie1

Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Description of Business	'
	Description of Business
	Immersion Corporation (the “Company”) was incorporated in 1993 in California and reincorporated in Delaware in 1999. It is an intellectual property (“IP”) and technology licensing company focused on the creation, design, development, and licensing of innovations and technologies that allow people to use their sense of touch more fully when operating a wide variety of digital devices.
Principles of Consolidation and Basis of Presentation	'
	Principles of Consolidation and Basis of Presentation
	The condensed consolidated financial statements include the accounts of Immersion Corporation and its wholly-owned subsidiaries: Immersion Canada Inc.; Immersion International, LLC; Immersion Medical, Inc.; Immersion Japan K.K.; Immersion Ltd.; Immersion Software Ireland Ltd.; Haptify, Inc.; and Immersion (Shanghai) Science & Technology Company, Ltd. All intercompany accounts, transactions, and balances have been eliminated in consolidation.
	The accompanying condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions for Form 10-Q and Article 10 of Regulation S-X and, therefore, do not include all information and footnotes necessary for a complete presentation of the financial position, results of operations, and cash flows, in conformity with GAAP. These condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements included in the Company’s Annual Report on Form 10-K, for the fiscal year ended December 31, 2013. In the opinion of management, all adjustments consisting of only normal and recurring items necessary for the fair presentation of the financial position and results of operations for the interim periods presented have been included.
	The results of operations for the three months and nine months ended September 30, 2014 are not necessarily indicative of the results to be expected for the full year.
Segment Information	'
	Segment Information
	The Company develops, licenses, and supports a wide range of software and IP that more fully engage users’ sense of touch when operating digital devices. The Company focuses on the following target application areas: mobility and consumer electronics, automotive, gaming, commercial and industrial, and medical. The Company’s chief operating decision maker (“CODM”) is the Chief Executive Officer. The CODM allocates resources to and assesses the performance of the Company using information about its financial results as one operating and reporting segment.
Intangible Assets	'
	Intangible Assets
	During the fourth quarter 2013, the Company elected to change its method of accounting for external patent-related costs associated with its internally developed patents and trademarks. Prior to the change the Company capitalized the external legal, filing, continuation or annuity fees associated with patent and trademark applications. These costs were amortized on a straight-line basis over their estimated economic useful lives which were generally ten years from the date of issuance. Under the current method of accounting, external patent-related costs are expensed as incurred and classified as general and administrative expenses in the Company’s condensed consolidated statement of income consistent with the classification of internal legal costs associated with internally developed patents and trademarks. Costs associated with acquired patents and other intangible assets continue to be capitalized as incurred. These costs are amortized utilizing the straight-line method, which approximates the pattern of consumption over the estimated useful lives of the respective assets, generally ten years.
	In accordance with Accounting Standards Codification (“ASC”) 250, “Accounting Changes and Error Corrections,” the change in accounting method has been retrospectively applied to all prior periods presented herein. Comparative financial statements of prior years have been adjusted to apply the new method retrospectively.
Revenue Recognition	'
	Revenue Recognition
	The Company recognizes revenues in accordance with applicable accounting standards, including ASC 605-10-S99, “Revenue Recognition” (“ASC 605-10-S99”); ASC 605-25, “Multiple Element Arrangements” (“ASC 605-25”); and ASC 985-605, “Software-Revenue Recognition” (“ASC 985-605”). The Company derives its revenues from three principal sources: royalty and license fees, development contract and service fees, and, previously, product sales. As described below, management judgments, assumptions, and estimates must be made and used in connection with the revenue recognized in any accounting period. Material differences may result in the amount and timing of revenue for any period based on the judgments and estimates made by management. Specifically, in connection with each transaction, the Company must evaluate whether: (i) persuasive evidence of an arrangement exists, (ii) delivery has occurred, (iii) the fee is fixed or determinable, and (iv) collectibility is probable. The Company applies these criteria as discussed below.
		•	Persuasive evidence of an arrangement exists. For a license arrangement, the Company requires a written contract, signed by both the customer and the Company. For a stand-alone product sale, the Company requires a purchase order or other form of written agreement with the customer.
		•	Delivery has occurred. The Company delivers software and product to customers physically and also delivers software electronically. For physical deliveries not related to software, the transfer terms typically include transfer of title and risk of loss at the Company’s shipping location. For electronic deliveries, delivery occurs when the Company provides the customer access codes or “keys” that allow the customer to take immediate possession of the software.
		•	The fee is fixed or determinable. The Company’s arrangement fee is based on the use of standard payment terms, which are those that are generally extended to the majority of customers. For transactions involving extended payment terms, the Company deems these fees not to be fixed or determinable for revenue recognition purposes and revenue is deferred until the fees become due and payable.
		•	Collectibility is probable. To recognize revenue, the Company must judge collectibility of fees, which is done on a customer-by-customer basis pursuant to the Company’s credit review policy. The Company typically sells to customers with whom there is a history of successful collection. For new customers, the Company evaluates the customer’s financial condition and ability to pay. If it is determined that collectibility is not probable based upon the credit review process or the customer’s payment history, revenue is recognized when payment is received.
	Royalty and license revenue — The Company licenses its patents and software to customers in a variety of industries such as mobility, gaming, automotive, and medical devices. Certain of these are variable fee arrangements where the royalties earned by the Company are based on unit or sales volumes of the respective licensees. The Company also enters into fixed license fee arrangements. The terms of the royalty agreements generally require licensees to give notification of royalties due to the Company within 30 – 45 days of the end of the quarter during which their related sales occur. As the Company is unable to reliably estimate the licensees’ sales in any given quarter to determine the royalties due to it, the Company recognizes royalty revenues based on royalties reported by licensees and when all revenue recognition criteria are met. Certain royalties are based upon customer shipments or revenues and could be subject to change and may result in out of period adjustments. The Company recognizes fixed license fee revenue for licenses when earned under the terms of the agreements, which is generally recognized on a straight-line basis over the expected term of the license.
	Development, services, and other revenue — Development, services, and other revenue are composed of engineering services (engineering services and/or development contracts), and in limited cases, post contract customer support (“PCS”). Engineering services revenues are recognized under the proportional performance accounting method based on physical completion of the work to be performed or completed performance method. A provision for losses on contracts is made, if necessary, in the period in which the loss becomes probable and can be reasonably estimated. Revisions in estimates are reflected in the period in which the conditions become known. To date, such losses have not been significant. Revenue from PCS is typically recognized over the period of the ongoing obligation, which is generally consistent with the contractual term.
	Multiple element arrangements — The Company enters into multiple element arrangements in which customers purchase time-based non-exclusive licenses that cannot be resold to others, which include a combination of software and/or IP licenses, engineering services, and in limited cases PCS. For arrangements that are software based and include software and engineering services, the services are generally not essential to the functionality of the software, and customers may purchase engineering services to facilitate the adoption of the Company’s technology, but they may also decide to use their own resources or appoint other engineering service organizations to perform these services. For arrangements that are in substance subscription arrangements, the entire arrangement fee is recognized ratably over the contract term, subject to any limitations related to extended payment terms. For arrangements involving upfront fees for services and royalties earned by the Company based on unit or sales volumes of the respective licensees, and the services are performed ratably over the arrangement or front-end loaded; the upfront fees are recognized ratably over the contract term and royalties based on unit or sales volume are recognized when they become fixed and determinable. As the Company is unable to reliably estimate the licensees’ sales in any given quarter to determine the royalties due to it, the Company recognizes per unit or sales volume driven royalty revenues based on royalties reported by licensees and when all revenue recognition criteria are met.
	Product sales — The Company recognizes revenue from the sale of products and the license of associated software, if any, and expenses all related costs of products sold, once delivery has occurred and customer acceptance, if required, has been achieved. The Company typically grants to customers a warranty that guarantees the products will substantially conform to the Company’s current specifications for generally three to twelve months from the delivery date pursuant to the terms of the arrangement. Historically, warranty-related costs have not been significant.
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements
	In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09 “Revenue from Contracts with Customers: Topic 606” (“ASU 2014-09”) which will supersede the current revenue recognition requirements in Topic 605, Revenue Recognition, and most industry-specific guidance. The core principle of ASU 2014-09 is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Further, the guidance requires improved disclosures to help users of financial statements better understand the nature, amount, timing, and uncertainty of revenue that is recognized. ASU 2014-09 is effective for reporting periods beginning after December 15, 2016, and permits companies to either apply the requirements retrospectively to all prior periods presented, or apply the requirements in the year of adoption, through a cumulative adjustment. The Company is required to adopt ASU 2014-09 as of January 1, 2017, and is in the process of determining the method of adoption and evaluating the impact on its consolidated financial statements.

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Schedule of Financial Instruments Measured at Fair Value on Recurring Basis	'
	Financial instruments measured at fair value on a recurring basis as of September 30, 2014 and December 31, 2013 are classified based on the valuation technique in the table below:
		September 30, 2014
		Fair value measurements using
		Quoted Prices in		Significant		Significant		Total
		Active Markets		Other		Unobservable
		for Identical		Observable		Inputs
		Assets		Inputs		(Level 3)
		(Level 1)		(Level 2)
		(In thousands)
	Assets:
	U.S. Treasury securities	$	0	$	52,989	$	0	$	52,989
	Money market accounts		7,029		0		0		7,029
	Total assets at fair value	$	7,029	$	52,989	$	0	$	60,018
	The above table excludes $3.1 million of cash held in banks.
		December 31, 2013
		Fair value measurements using
		Quoted Prices in		Significant		Significant		Total
		Active Markets		Other		Unobservable
		for Identical		Observable		Inputs
		Assets		Inputs		(Level 3)
		(Level 1)		(Level 2)
		(In thousands)
	Assets:
	U.S. Treasury securities	$	0	$	56,976	$	0	$	56,976
	Money market accounts		10,075		0		0		10,075
	Total assets at fair value	$	10,075	$	56,976	$	0	$	67,051
	The above table excludes $4.1 million of cash held in banks.
Schedule of Short-Term Investments	'
	Short-term Investments
		September 30, 2014
		Amortized		Gross		Gross		Fair
		Cost		Unrealized		Unrealized		Value
				Holding		Holding
				Gains		Losses
		(In thousands)
	U.S. Treasury securities	$	52,973	$	16	$	0	$	52,989
	Total	$	52,973	$	16	$	0	$	52,989
		December 31, 2013
		Amortized		Gross		Gross		Fair
		Cost		Unrealized		Unrealized		Value
				Holding		Holding
				Gains		Losses
		(In thousands)
	U.S. Treasury securities	$	56,966	$	10	$	0	$	56,976
	Total	$	56,966	$	10	$	0	$	56,976

Accounts_and_Other_Receivables1

Accounts and Other Receivables (Tables)	9 Months Ended
	Sep. 30, 2014
Receivables [Abstract]	'
Schedule of Accounts and Other Receivables	'
		September 30,		December 31,
		2014		2013
		(In thousands)
	Trade accounts receivable	$	2,471	$	320
	Receivables from vendors and other		521		278
	Accounts and other receivables	$	2,992	$	598

Property_and_Equipment_Tables

Property and Equipment (Tables)	9 Months Ended
	Sep. 30, 2014
Property, Plant and Equipment [Abstract]	'
Schedule of Property and Equipment	'
		September 30,			December 31,
		2014			2013
		(In thousands)
	Computer equipment and purchased software	$	3,392		$	3,595
	Machinery and equipment		693			704
	Furniture and fixtures		827			607
	Leasehold improvements		1,297			938
	Total		6,209			5,844
	Less accumulated depreciation		(4,929	)		(4,900	)
	Property and equipment, net	$	1,280		$	944

Intangibles_and_Other_Assets_T

Intangibles and Other Assets (Tables)	9 Months Ended
	Sep. 30, 2014
Text Block [Abstract]	'
Schedule of Intangibles and Other Assets	'
		September 30,				December 31,
			2014				2013
			(In thousands)
	Purchased patents and other purchased intangible assets		$	5,731			$	5,731
	Other assets			262				289
	Gross intangibles and other assets			5,993				6,020
	Accumulated amortization of purchased patents and other purchased intangible			(5,694	)			(5,639	)
	Intangibles and other assets, net		$	299			$	381
Schedule of Amortization of Intangibles	'
	Amortization of intangibles was as follows:
			Three Months Ended							Nine Months Ended
			September 30,							September 30,
			2014				2013			2014		2013
			(In thousands)							(In thousands)
	Amortization of intangibles		$	15			$	20		$	55	$	60
Schedule of Estimated Remaining Annual Amortization Expense for Purchased Patents	'
	The table below includes estimated remaining annual amortization expense for purchased patents as of September 30, 2014.
			Estimated
			Amortization
			Expense
			(In thousands)
	Remainder of 2014		$	11
	2015			20
	2016			6
	Total		$	37

Components_of_Other_Current_Li1

Components of Other Current Liabilities (Tables)	9 Months Ended
	Sep. 30, 2014
Text Block [Abstract]	'
Components of Other Current Liabilities	'
		September 30,		December 31,
		2014		2013
		(In thousands)
	Accrued legal	$	735	$	780
	Income taxes payable		76		41
	Other current liabilities		672		832
	Total other current liabilities	$	1,483	$	1,653

Longterm_Deferred_Revenue_Tabl

Long-term Deferred Revenue (Tables)	9 Months Ended
	Sep. 30, 2014
Deferred Revenue Disclosure [Abstract]	'
Schedule of Long-term Deferred Revenue	'
		September 30,		December 31,
		2014		2013
		(In thousands)
	Deferred revenue for Sony Computer Entertainment	$	8,498	$	12,840
	Other deferred revenue		520		601
	Long-term deferred revenue	$	9,018	$	13,441

Stockbased_Compensation_Tables

Stock-based Compensation (Tables)	9 Months Ended
	Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Schedule of Stock Options and Awards	'
	Awards granted other than an option or stock appreciation right reduce the common stock shares available for grant under the program by 1.75 shares for each share issued.
		September 30,
		2014
	Common stock shares available for grant		2,599,060
	Common stock options outstanding		3,278,096
	Restricted stock awards outstanding		35,364
	Restricted stock units outstanding		543,391
Schedule of Employee Stock Purchase Plan	'
	The intrinsic value listed below is calculated as the difference between the market value on the date of purchase and the purchase price of the shares.
		Nine Months
		Ended
		September 30,
		2014
	Shares purchased under ESPP		38,298
	Average price of shares purchased under ESPP	$	9.95
	Intrinsic value of shares purchased under ESPP	$	107,000
Schedule of Standard and Market-based Stock Options Activity	'
	The following table sets forth the summary of standard option activity under the Company’s stock option plans for the nine months ended September 30, 2014 and year ended December 31, 2013:
		Nine Months			Year
		Ended			Ended
		September 30,			December 31,
		2014			2013
	Beginning outstanding balance		3,227,167			3,155,631
	Granted		331,380			1,058,700
	Exercised		(194,269	)		(956,633	)
	Forfeited and cancelled		(136,182	)		(30,531	)
	Ending outstanding balance		3,228,096			3,227,167
	Aggregate intrinsic value of options exercised	$	1,099,000		$	5,774,000
	Weighted average fair value of options granted		5.53			5.63
	The following table sets forth the summary of the market-based option activity under the Company’s stock option plans for the nine months ended September 30, 2014:
		Nine Months
		Ended
		September 30,
		2014
	Beginning outstanding balance		0
	Granted		50,000
	Exercised		0
	Forfeited and cancelled		0
	Ending outstanding balance		50,000
	Aggregate intrinsic value of options exercised	$	0
	Weighted average fair value of options granted		5.71
Schedule of Information Regarding Standard and Market Condition Based Stock Options Outstanding	'
	Information regarding these standard stock options outstanding at September 30, 2014 and December 31, 2013 is summarized below:
		Number of			Weighted			Weighted			Aggregate
		Shares			Average			Average			Intrinsic
					Exercise			Remaining			Value
					Price			Contractual			(In millions)
								Life (years)
	31-Dec-13
	Options outstanding		3,227,167		$	7.78			5.46		$	9.9
	Options vested and expected to vest using estimated forfeiture rates		2,994,044			7.61			5.41			9.6
	Options exercisable		1,774,546			6.67			4.95			7.5
	30-Sep-14
	Options outstanding		3,228,096		$	8.25			4.92		$	5
	Options vested and expected to vest using estimated forfeiture rates		3,083,395			8.14			4.88			5
	Options exercisable		1,973,156			7.14			4.46			4.6
	Information regarding these market condition based stock options outstanding at September 30, 2014 is summarized below:
		Number of			Weighted			Weighted			Aggregate
		Shares			Average			Average			Intrinsic
					Exercise			Remaining			Value
					Price			Contractual			(In millions)
								Life (years)
	September 30, 2014
	Options outstanding		50,000		$	11.94			6.4		$	0
	Options vested and expected to vest using estimated forfeiture rates		44,490			11.94			6.4			0
	Options exercisable		0			0			0			0
Schedule of Restricted Stock Units Activity	'
	RSU activity for the nine months ended September 30, 2014 and year ended December 31, 2013 was as follows:
		Nine Months			Year
		Ended			Ended
		September 30,			December 31,
		2014			2013
	Beginning outstanding balance		668,056			708,651
	Awarded		215,630			294,150
	Released		(292,636	)		(303,882	)
	Forfeited		(47,659	)		(30,863	)
	Ending outstanding balance		543,391			668,056
	Weighted average grant date fair value of RSUs granted	$	11.85		$	7.12
	Total fair value of RSUs released		3,261,000			2,806,000
	Total fair value of RSUs remaining unvested		4,662,000			6,934,000
Schedule of Information Regarding Restricted Stock Units Outstanding	'
	Information regarding RSUs outstanding at September 30, 2014 and December 31, 2013 is summarized below:
		Number of			Weighted			Aggregate			Fair
		Shares			Average			Intrinsic			Value
					Remaining			Value			(In millions)
					Contractual			(In millions)
					Life (years)
	December 31, 2013
	RSUs outstanding		668,056			0.91		$	6.9		$	6.9
	RSUs vested and expected to vest using estimated forfeiture rates		583,711			0.89			6.1
	September 30, 2014
	RSUs outstanding		543,391			0.95		$	4.7		$	4.7
	RSUs vested and expected to vest using estimated forfeiture rates		471,343			0.91			4
Schedule of Restricted Stock Awards Activity	'
	Restricted stock award activity for the nine months ended September 30, 2014 and year ended December 31, 2013 was as follows:
		Nine Months			Year
		Ended			Ended
		September 30,			December 31,
		2014			2013
	Beginning outstanding balance		44,000			44,000
	Awarded		35,364			44,000
	Released		(44,000	)		(44,000	)
	Forfeited		0			0
	Ending outstanding balance		35,364			44,000
	Weighted average grant date fair value of restricted stock awarded	$	10.97		$	14.09
	Total fair value of restricted stock awards released		483,000			676,000
Schedule of Stock Options, Market Condition Based Stock Options and Employee Stock Purchase Plan, Valuation Assumptions	'
	The assumptions used to value option grants under the Company’s stock plans were as follows:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
	Standard Stock Options
	Expected life (in years)		4.7			4.7			4.7			4.9
	Volatility		57	%		64	%		57	%		68	%
	Interest rate		1.5	%		1.3	%		1.4	%		0.8	%
	Dividend yield		N/A			N/A			N/A			N/A
		Three Months Ended			Nine Months Ended
		September 30,			September 30,
		2014			2014
	Market Condition Based Stock Options
	Expected life (in years)		N/A			7
	Volatility		N/A			66	%
	Interest rate		N/A			2.2	%
	Dividend yield		N/A			N/A
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
	Employee Stock Purchase Plan
	Expected life (in years)		0.5			0.5			0.5			0.5
	Volatility		46	%		69	%		43	%		67	%
	Interest rate		0.1	%		0.8	%		0.1	%		0.1	%
	Dividend yield		N/A			N/A			N/A			N/A
Schedule of Stock-Based Compensation	'
	Total stock-based compensation recognized in the condensed consolidated statements of income and comprehensive income is as follows:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
		(In thousands)						(In thousands)
	Statement of Income Classifications
	Sales and marketing	$	230		$	223		$	784		$	496
	Research and development		265			231			1,008			807
	General and administrative		636			795			2,266			2,135
	Total	$	1,131		$	1,249		$	4,058		$	3,438

Stockholders_Equity_Tables

Stockholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2014
Equity [Abstract]	'
Changes in Accumulated Other Comprehensive Income	'
	The changes in accumulated other comprehensive income are included in the table below.
		Nine Months Ended September 30, 2014
		Unrealized Gains		Foreign		Total
		and Losses on		Currency
		Available-for Sale		Items
		Securities
		(In thousands)
	Beginning balance	$	11	$	101	$	112
	Other comprehensive income before reclassifications		5		0		5
	Amounts reclassified from accumulated other comprehensive income		0		0		0
	Net current period other comprehensive income		5		0		5
	Ending Balance	$	16	$	101	$	117

Income_Taxes_Tables

Income Taxes (Tables)	9 Months Ended
	Sep. 30, 2014
Income Tax Disclosure [Abstract]	'
Schedule of Income Tax Provisions	'
	Income tax provisions consisted of the following:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
		(In thousands)						(In thousands)
	Income before provision for income taxes	$	1,672		$	856		$	4,880		$	3,036
	Provision for income taxes		(599	)		(257	)		(1,774	)		(284	)
	Effective tax rate		35.8	%		30	%		36.4	%		9.4	%

Net_Income_Per_Share_Tables

Net Income Per Share (Tables)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Reconciliation used in Computing Basic and Diluted Net Income per Share	'
	The following is a reconciliation of the numerators and denominators used in computing basic and diluted net income per share:
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
		(in thousands except per share
		amounts)
	Numerator:
	Net income	$	1,073	$	599	$	3,106	$	2,752
	Denominator:
	Shares used in computation of basic net income per share (weighted average common shares outstanding)		28,505		28,558		28,420		28,047
	Dilutive potential common shares:
	Restricted Stock and RSUs		188		302		262		333
	Stock options		658		793		673		825
	Shares used in computation of diluted net income per share		29,351		29,653		29,355		29,205
	Basic net income per share	$	0.04	$	0.02	$	0.11	$	0.1
	Diluted net income per share	$	0.04	$	0.02	$	0.11	$	0.09

Significant_Accounting_Policie2

Significant Accounting Policies - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2014
	Segment
Significant Accounting Policies [Line Items]	'
Number of operating and reporting segments	1
Estimated useful life of assets	'10 years
Products warranty grants description	'The Company typically grants to customers a warranty that guarantees the products will substantially conform to the Company's current specifications for generally three to twelve months from the delivery date pursuant to the terms of the arrangement.
Maximum [Member]	'
Significant Accounting Policies [Line Items]	'
Period of royalties notification	'45 days
Warranty period	'12 months
Minimum [Member]	'
Significant Accounting Policies [Line Items]	'
Period of royalties notification	'30 days
Warranty period	'3 months

Fair_Value_Measurements_Schedu

Fair Value Measurements - Schedule of Financial Instruments Measured at Fair Value on Recurring Basis (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	$60,018	$67,051
U.S. Treasury Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	52,989	56,976
Money Market Accounts [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	7,029	10,075
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	7,029	10,075
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Treasury Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Money Market Accounts [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	7,029	10,075
Significant Other Observable Inputs (Level 2) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	52,989	56,976
Significant Other Observable Inputs (Level 2) [Member] | U.S. Treasury Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	52,989	56,976
Significant Other Observable Inputs (Level 2) [Member] | Money Market Accounts [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	0	0
Significant Unobservable Inputs (Level 3) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	0	0
Significant Unobservable Inputs (Level 3) [Member] | U.S. Treasury Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	0	0
Significant Unobservable Inputs (Level 3) [Member] | Money Market Accounts [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	$0	$0

Fair_Value_Measurements_Additi

Fair Value Measurements - Additional Information (Detail) (USD $)	9 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'	'
Cash held in banks	$3.10	$4.10
Period for contractual maturities of the Company's available-for-sale securities	'1 year	'1 year

Fair_Value_Measurements_Schedu1

Fair Value Measurements - Schedule of Short-Term Investments (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Short-term Investments, Amortized Cost	$52,973	$56,966
Short-term Investments, Gross Unrealized Holding Gains	16	10
Short-term Investments, Gross Unrealized Holding Losses	0	0
Short-term Investments, Fair Value	52,989	56,976
U.S. Treasury Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Short-term Investments, Amortized Cost	52,973	56,966
Short-term Investments, Gross Unrealized Holding Gains	16	10
Short-term Investments, Gross Unrealized Holding Losses	0	0
Short-term Investments, Fair Value	$52,989	$56,976

Accounts_and_Other_Receivables2

Accounts and Other Receivables - Schedule of Accounts and Other Receivables (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Receivables [Abstract]	'	'
Trade accounts receivable	$2,471	$320
Receivables from vendors and other	521	278
Accounts and other receivables	$2,992	$598

Property_and_Equipment_Schedul

Property and Equipment - Schedule of Property and Equipment (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Property, Plant and Equipment [Abstract]	'	'
Computer equipment and purchased software	$3,392	$3,595
Machinery and equipment	693	704
Furniture and fixtures	827	607
Leasehold improvements	1,297	938
Total	6,209	5,844
Less accumulated depreciation	-4,929	-4,900
Property and equipment, net	$1,280	$944

Intangibles_and_Other_Assets_S

Intangibles and Other Assets - Schedule of Intangibles and Other Assets (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Intangibles And Other Assets [Abstract]	'	'
Purchased patents and other purchased intangible assets	$5,731	$5,731
Other assets	262	289
Gross intangibles and other assets	5,993	6,020
Accumulated amortization of purchased patents and other purchased intangible	-5,694	-5,639
Intangibles and other assets, net	$299	$381

Intangibles_and_Other_Assets_A

Intangibles and Other Assets - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2014
Intangibles And Other Assets [Abstract]	'
Patents, estimated useful lives	'10 years

Intangibles_and_Other_Assets_S1

Intangibles and Other Assets - Schedule of Amortization of Intangibles (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Intangibles And Other Assets [Abstract]	'	'	'	'
Amortization of intangibles	$15	$20	$55	$60

Intangibles_and_Other_Assets_S2

Intangibles and Other Assets - Schedule of Estimated Remaining Annual Amortization Expense for Purchased Patents (Detail) (USD $)	Sep. 30, 2014
In Thousands, unless otherwise specified
Intangibles And Other Assets [Abstract]	'
Remainder of 2014	$11
2015	20
2016	6
Total	$37

Components_of_Other_Current_Li2

Components of Other Current Liabilities - Components of Other Current Liabilities (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Other Liabilities, Current [Abstract]	'	'
Accrued legal	$735	$780
Income taxes payable	76	41
Other current liabilities	672	832
Total other current liabilities	$1,483	$1,653

Longterm_Deferred_Revenue_Sche

Long-term Deferred Revenue - Schedule of Long-term Deferred Revenue (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Deferred Revenue Disclosure [Abstract]	'	'
Deferred revenue for Sony Computer Entertainment	$8,498	$12,840
Other deferred revenue	520	601
Long-term deferred revenue	$9,018	$13,441

StockBased_Compensation_Additi

Stock-Based Compensation - Additional Information (Detail) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Number of options for every share issued	1.75	'
Percentage of fair market value on the purchase date	85.00%	'
Maximum number of shares per employee	2,000	'
Employee stock purchase plan offering period	'6 months	'
Maximum value of shares per employee	$25,000	'
Common stock reserved for issuance	1,000,000	'
Shares purchased by employee since inception of ESPP	557,738	'
Shares purchased under ESPP	38,298	36,921
Unrecognized compensation cost	$7,200,000	'
Stock Options [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Stock-based payment award vesting period (years)	'4 years	'
Stock Options [Member] | Maximum [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Stock-based payment award expiration period (years)	'10 years	'
Stock Options [Member] | Minimum [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Stock-based payment award expiration period (years)	'5 years	'
Restricted Stock Awards [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Stock-based payment award vesting period (years)	'1 year	'
Unrecognized compensation cost, recognized over an estimated weighted-average period (years)	'8 months 5 days	'
Restricted Stock Units [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Stock-based payment award vesting period (years)	'3 years	'
Unrecognized compensation cost, recognized over an estimated weighted-average period (years)	'1 year 6 months 4 days	'
Market Condition Based Stock Options [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Stock-based payment award expiration period (years)	'7 years	'
Unrecognized compensation cost, recognized over an estimated weighted-average period (years)	'3 years 5 months 1 day	'
Standard Stock Options [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Unrecognized compensation cost, recognized over an estimated weighted-average period (years)	'2 years 11 months 12 days	'

StockBased_Compensation_Schedu

Stock-Based Compensation - Schedule of Stock Options and Awards (Detail)	Sep. 30, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Common stock shares available for grant	2,599,060	'	'
Stock Options [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Common stock options outstanding	3,278,096	'	'
Restricted Stock Awards [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Restricted stock awards and units outstanding	35,364	44,000	44,000
Restricted Stock Units [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Restricted stock awards and units outstanding	543,391	668,056	708,651

StockBased_Compensation_Schedu1

Stock-Based Compensation - Schedule of Employee Stock Purchase Plan (Detail) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'	'
Shares purchased under ESPP	38,298	36,921
Average price of shares purchased under ESPP	$9.95	'
Intrinsic value of shares purchased under ESPP	$107,000	'

StockBased_Compensation_Schedu2

Stock-Based Compensation - Schedule of Standard and Market-based Stock Options Activity (Detail) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Standard Stock Options [Member]	'	'
Schedule Of Stock Options [Line Items]	'	'
Beginning outstanding balance	3,227,167	3,155,631
Granted	331,380	1,058,700
Exercised	-194,269	-956,633
Forfeited and cancelled	-136,182	-30,531
Ending outstanding balance	3,228,096	3,227,167
Aggregate intrinsic value of options exercised	$1,099,000	$5,774,000
Weighted average fair value of options granted	$5.53	$5.63
Market Condition Based Stock Options [Member]	'	'
Schedule Of Stock Options [Line Items]	'	'
Beginning outstanding balance	0	'
Granted	50,000	'
Exercised	0	'
Forfeited and cancelled	0	'
Ending outstanding balance	50,000	'
Aggregate intrinsic value of options exercised	$0	'
Weighted average fair value of options granted	$5.71	'

StockBased_Compensation_Schedu3

Stock-Based Compensation - Schedule of Information Regarding Standard and Market Condition Based Stock Options Outstanding (Detail) (USD $)	9 Months Ended	12 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Dec. 31, 2012
Standard Stock Options [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Options outstanding, Number of Shares	3,228,096	3,227,167	3,155,631
Options vested and expected to vest using estimated forfeiture rates, Number of Shares	3,083,395	2,994,044	'
Options exercisable, Number of Shares	1,973,156	1,774,546	'
Options outstanding, Weighted Average Exercise Price	$8.25	$7.78	'
Options vested and expected to vest using estimated forfeiture rates, Weighted Average Exercise Price	$8.14	$7.61	'
Options exercisable, Weighted Average Exercise Price	$7.14	$6.67	'
Options outstanding, Weighted Average Remaining Contractual Life (years)	'4 years 11 months 1 day	'5 years 5 months 16 days	'
Options vested and expected to vest using estimated forfeiture rates, Weighted Average Remaining Contractual Life (years)	'4 years 10 months 17 days	'5 years 4 months 28 days	'
Options exercisable, Weighted Average Remaining Contractual Life (years)	'4 years 5 months 16 days	'4 years 11 months 12 days	'
Options outstanding, Aggregate Intrinsic Value	$5	$9.90	'
Options vested and expected to vest using estimated forfeiture rates, Aggregate Intrinsic Value	5	9.6	'
Options exercisable, Aggregate Intrinsic Value	4.6	7.5	'
Market Condition Based Stock Options [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Options outstanding, Number of Shares	50,000	0	'
Options vested and expected to vest using estimated forfeiture rates, Number of Shares	44,490	'	'
Options exercisable, Number of Shares	0	'	'
Options outstanding, Weighted Average Exercise Price	$11.94	'	'
Options vested and expected to vest using estimated forfeiture rates, Weighted Average Exercise Price	$11.94	'	'
Options exercisable, Weighted Average Exercise Price	$0	'	'
Options outstanding, Weighted Average Remaining Contractual Life (years)	'6 years 4 months 24 days	'	'
Options vested and expected to vest using estimated forfeiture rates, Weighted Average Remaining Contractual Life (years)	'6 years 4 months 24 days	'	'
Options exercisable, Weighted Average Remaining Contractual Life (years)	'0 years	'	'
Options outstanding, Aggregate Intrinsic Value	0	'	'
Options vested and expected to vest using estimated forfeiture rates, Aggregate Intrinsic Value	0	'	'
Options exercisable, Aggregate Intrinsic Value	$0	'	'

StockBased_Compensation_Schedu4

Stock-Based Compensation - Schedule of Restricted Stock Units Activity (Detail) (Restricted Stock Units [Member], USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Restricted Stock Units [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Beginning outstanding balance	668,056	708,651
Awarded	215,630	294,150
Released	-292,636	-303,882
Forfeited	-47,659	-30,863
Ending outstanding balance	543,391	668,056
Weighted average grant date fair value of RSUs granted	$11.85	$7.12
Total fair value of RSUs released	$3,261,000	$2,806,000
Total fair value of RSUs remaining unvested	$4,662,000	$6,934,000

StockBased_Compensation_Schedu5

Stock-Based Compensation - Schedule of Information Regarding Restricted Stock Units Outstanding (Detail) (Restricted Stock Units [Member], USD $)	9 Months Ended	12 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Dec. 31, 2012
Restricted Stock Units [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
RSUs outstanding, Number of Shares	543,391	668,056	708,651
RSUs vested and expected to vest using estimated forfeiture rates, Number of Shares	471,343	583,711	'
RSUs outstanding, Weighted Average Remaining Contractual Life (years)	'11 months 12 days	'10 months 28 days	'
RSUs vested and expected to vest using estimated forfeiture rates, Weighted Average Remaining Contractual Life (years)	'10 months 28 days	'10 months 21 days	'
RSUs outstanding, Aggregate Intrinsic Value	$4.70	$6.90	'
RSUs vested and expected to vest using estimated forfeiture rates, Aggregate Intrinsic Value	4	6.1	'
RSUs outstanding, Fair Value	4.7	6.9	'
RSUs vested and expected to vest using estimated forfeiture rates, Fair Value	'	'	'

StockBased_Compensation_Schedu6

Stock-Based Compensation - Schedule of Restricted Stock Awards Activity (Detail) (Restricted Stock Awards [Member], USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Restricted Stock Awards [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Beginning outstanding balance	44,000	44,000
Awarded	35,364	44,000
Released	-44,000	-44,000
Forfeited	0	0
Ending outstanding balance	35,364	44,000
Weighted average grant date fair value of restricted stock awarded	$10.97	$14.09
Total fair value of restricted stock awards released	$483,000	$676,000

StockBased_Compensation_Schedu7

Stock-Based Compensation - Schedule of Stock Options, Market Condition Based Stock Options and Employee Stock Purchase Plan, Valuation Assumptions (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Standard Stock Options [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Expected life (in years)	'4 years 8 months 12 days	'4 years 8 months 12 days	'4 years 8 months 12 days	'4 years 10 months 24 days
Volatility	57.00%	64.00%	57.00%	68.00%
Interest rate	1.50%	1.30%	1.40%	0.80%
Dividend yield	'	'	'	'
Market Condition Based Stock Options [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Expected life (in years)	'0 years	'	'7 years	'
Volatility	'	'	66.00%	'
Interest rate	'	'	2.20%	'
Dividend yield	'	'	'	'
Employee Stock Purchase Plan [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Expected life (in years)	'6 months	'6 months	'6 months	'6 months
Volatility	46.00%	69.00%	43.00%	67.00%
Interest rate	0.10%	0.80%	0.10%	0.10%
Dividend yield	'	'	'	'

StockBased_Compensation_Schedu8

Stock-Based Compensation - Schedule of Stock-Based Compensation (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Total	$1,131	$1,249	$4,058	$3,438
Sales and Marketing [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Total	230	223	784	496
Research and Development [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Total	265	231	1,008	807
General and Administrative [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Total	$636	$795	$2,266	$2,135

Stockholders_Equity_Changes_in

Stockholders' Equity - Changes in Accumulated Other Comprehensive Income (Detail) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Beginning balance	$112
Other comprehensive income before reclassifications	5
Amounts reclassified from accumulated other comprehensive income	0
Net current period other comprehensive income	5
Ending Balance	117
Unrealized Gains and Losses on Available-for Sale Securities [Member]	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Beginning balance	11
Other comprehensive income before reclassifications	5
Amounts reclassified from accumulated other comprehensive income	0
Net current period other comprehensive income	5
Ending Balance	16
Foreign Currency Items [Member]	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Beginning balance	101
Other comprehensive income before reclassifications	0
Amounts reclassified from accumulated other comprehensive income	0
Net current period other comprehensive income	0
Ending Balance	$101

Stockholders_Equity_Additional

Stockholders' Equity - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Equity [Abstract]	'	'	'	'
Stock repurchase program, authorized amount	$50	'	$50	'
Repurchased shares	534,849	0	1,151,143	0
Repurchased shares, value	5	'	12	'
Stock repurchase program, average cost	$9.36	'	$10.42	'
Stock repurchase program, remaining available repurchase amount	$7.40	'	$7.40	'

Income_Taxes_Schedule_of_Incom

Income Taxes - Schedule of Income Tax Provisions (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Tax Disclosure [Abstract]	'	'	'	'
Income before provision for income taxes	$1,672	$856	$4,880	$3,036
Provision for income taxes	($599)	($257)	($1,774)	($284)
Effective tax rate	35.80%	30.00%	36.40%	9.40%

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	9 Months Ended
	Sep. 30, 2014
Income Taxes [Line Items]	'
Unrecognized tax benefits	$1,700,000
Unrecognized tax benefits, interest	71,000
Unrecognized tax benefits that would affect the Company's effective tax rate	270,000
Changes in the amount of unrecognized tax benefits	0
Net deferred income taxes	35,300,000
State and Foreign [Member]	'
Income Taxes [Line Items]	'
Valuation allowance of deferred tax assets	$7,000,000

Net_Income_Per_Share_Reconcili

Net Income Per Share - Reconciliation used in Computing Basic and Diluted Net Income per Share (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Numerator:	'	'	'	'
Net income	$1,073	$599	$3,106	$2,752
Denominator:	'	'	'	'
Shares used in computation of basic net income per share (weighted average common shares outstanding)	28,505	28,558	28,420	28,047
Dilutive potential common shares:	'	'	'	'
Restricted Stock and RSUs	188	302	262	333
Stock options	658	793	673	825
Shares used in computation of diluted net income per share	29,351	29,653	29,355	29,205
Basic net income per share	$0.04	$0.02	$0.11	$0.10
Diluted net income per share	$0.04	$0.02	$0.11	$0.09

Net_Income_Per_Share_Additiona

Net Income Per Share - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share [Abstract]	'	'	'	'
Options to purchase shares of common stock	1,600	1,200	1,500	902
Average fair market value of stock	$11.27	$13.72	$11.11	$11.53

Contingencies_Additional_Infor

Contingencies - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2014
	Additional_Class_Action
Commitments and Contingencies Disclosure [Abstract]	'
Number of additional class action complaints filed	4
Number of additional class action complaints voluntarily dismissed	1