CEVA (CEVA) 10-Q 12 Nov 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Nov. 05, 2013
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-13	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'
Trading Symbol	'CEVA	'
Entity Registrant Name	'CEVA INC	'
Entity Central Index Key	'0001173489	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	21,983,995

INTERIM_CONDENSED_CONSOLIDATED

INTERIM CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$11,607	$18,422
Short term bank deposits	33,467	47,229
Marketable securities	80,503	69,343
Trade receivables	9,144	6,232
Deferred tax assets	2,810	2,065
Prepaid expenses and other current assets	2,438	2,361
Total current assets	139,969	145,652
Long term bank deposits	28,370	23,050
Severance pay fund	6,940	6,130
Deferred tax assets	1,182	1,178
Property and equipment, net	1,723	1,392
Goodwill	36,498	36,498
Investments in other companies	3,367	2,433
Total long-term assets	78,080	70,681
Total assets	218,049	216,333
Current liabilities:	'	'
Trade payables	674	1,176
Deferred revenues	513	865
Accrued expenses and other payables	2,570	3,462
Accrued payroll and related benefits	6,631	6,978
Income taxes payable, net	1,863	1,626
Total current liabilities	12,251	14,107
Long term liabilities:	'	'
Accrued severance pay	7,034	6,158
Stockholders' equity:	'	'
Preferred Stock: $0.001 par value: 5,000,000 shares authorized; none issued and outstanding	'	'
Common Stock: $0.001 par value: 60,000,000 shares authorized; 23,595,160 shares issued both at September 30, 2013 and December 31, 2012, and 21,983,121 and 22,187,367 shares outstanding at September 30, 2013 and December 31, 2012, respectively	22	22
Additional paid in-capital	202,919	198,495
Treasury stock at cost (1,612,039 and 1,407,793 shares of common stock at September 30, 2013 and December 31, 2012, respectively)	-28,596	-25,694
Accumulated other comprehensive income (loss)	-121	360
Retained earnings	24,540	22,885
Total stockholders' equity	198,764	196,068
Total liabilities and stockholders' equity	$218,049	$216,333

INTERIM_CONDENSED_CONSOLIDATED1

INTERIM CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Statement Of Financial Position [Abstract]	'	'
Preferred stock, par value	$0.00	$0.00
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.00	$0.00
Common stock, shares authorized	60,000,000	60,000,000
Common stock, shares issued	23,595,160	23,595,160
Common stock, shares outstanding	21,983,121	22,187,367
Treasury stock, shares	1,612,039	1,407,793

INTERIM_CONDENSED_CONSOLIDATED2

INTERIM CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenues:	'	'	'	'
Licensing and related revenue	$3,945	$4,960	$15,108	$16,963
Royalties	6,060	7,046	19,826	23,747
Total revenues	10,005	12,006	34,934	40,710
Cost of revenues	1,131	1,046	3,799	2,927
Gross profit	8,874	10,960	31,135	37,783
Operating expenses:	'	'	'	'
Research and development, net	5,619	4,637	16,279	15,548
Sales and marketing	2,376	2,235	7,271	6,628
General and administrative	2,006	1,940	5,588	5,658
Total operating expenses	10,001	8,812	29,138	27,834
Operating income (loss)	-1,127	2,148	1,997	9,949
Financial income, net	617	731	2,053	2,653
Income (loss) before taxes on income	-510	2,879	4,050	12,602
Income taxes expense (benefit)	-187	285	493	1,672
Net income (loss)	($323)	$2,594	$3,557	$10,930
Basic net income (loss) per share	($0.01)	$0.12	$0.16	$0.48
Diluted net income (loss) per share	($0.01)	$0.11	$0.16	$0.46
Weighted-average shares used to compute net income (loss) per share	'	'	'	'
Basic	22,072	22,526	22,118	22,965
Diluted	22,072	23,019	22,601	23,565

INTERIM_CONDENSED_CONSOLIDATED3

INTERIM CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement Of Income And Comprehensive Income [Abstract]	'	'	'	'
Net income (loss):	($323)	$2,594	$3,557	$10,930
Available-for-sale securities:	'	'	'	'
Changes in unrealized gains (losses)	518	668	-171	1,509
Reclassification adjustments for gains included in net income (loss)	-62	36	-301	-91
Net change	456	704	-472	1,418
Cash flow hedges:	'	'	'	'
Changes in unrealized gains	77	34	295	-22
Reclassification adjustments for gains (losses) included in net income (loss)	-164	82	-452	222
Net change	-87	116	-157	200
Other comprehensive income (loss) before tax	369	820	-629	1,618
Income tax benefit (expense) related to components of other comprehensive income (loss)	-123	-216	148	-437
Other comprehensive income (loss), net of taxes	246	604	-481	1,181
Comprehensive income (loss)	($77)	$3,198	$3,076	$12,111

INTERIM_CONDENSED_CONSOLIDATED4

INTERIM CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:	'	'
Net income	$3,557	$10,930
Adjustments required to reconcile net income to net cash provided by operating activities:	'	'
Depreciation	495	387
Equity-based compensation	4,424	3,688
Realized gain, net on sale of available-for-sale marketable securities	-301	-91
Amortization of premiums on available-for-sale marketable securities	1,171	946
Accrued interest on bank deposits	-994	-1,402
Unrealized foreign exchange loss (gain)	16	-56
Changes in operating assets and liabilities:	'	'
Increase in trade receivables	-2,902	-899
Decrease (increase) in prepaid expenses and other current assets	-231	669
Increase in deferred taxes, net	-713	-549
Increase (decrease) in trade payables	-506	448
Decrease in deferred revenues	-352	-207
Decrease in accrued expenses and other payables	-790	-370
Decrease in accrued payroll and related benefits	-437	-1,197
Increase in income taxes payable	237	1,165
Excess tax benefit from equity-based compensation	'	-710
Increase (decrease) in accrued severance pay, net	62	-65
Net cash provided by operating activities	2,736	12,687
Cash flows from investing activities:	'	'
Purchase of property and equipment	-826	-344
Investment in bank deposits	-31,000	-34,604
Proceeds from bank deposits	40,575	34,353
Investment in available-for-sale marketable securities	-59,127	-32,867
Proceeds from maturity of available-for-sale marketable securities	7,758	12,330
Proceeds from sale of available-for-sale marketable securities	38,867	38,159
Investment in other company	-934	-1,533
Net cash provided by (used in) investing activities	-4,687	15,494
Cash flows from financing activities:	'	'
Purchase of Treasury Stock	-7,189	-23,652
Proceeds from exercise of stock-based awards	2,385	1,526
Excess tax benefit from equity-based compensation	'	710
Net cash used in financing activities	-4,804	-21,416
Effect of exchange rate movements on cash	-60	-39
Increase (decrease) in cash and cash equivalents	-6,815	6,726
Cash and cash equivalents at the beginning of the period	18,422	14,954
Cash and cash equivalents at the end of the period	11,607	21,680
Supplemental information of cash-flows activities:	'	'
Income and withholding taxes, net of refunds	$789	$345

BUSINESS

BUSINESS	9 Months Ended
	Sep. 30, 2013
Text Block [Abstract]	'
BUSINESS	'
	NOTE 1:	BUSINESS
	The financial information in this quarterly report includes the results of CEVA, Inc. and its subsidiaries (the “Company” or “CEVA”).
	CEVA licenses a family of programmable DSP cores and application-specific platforms, including communications (wireless, Wi-Fi and Bluetooth), digital photography and vision, audio, voice, Serial ATA (SATA) and Serial Attached SCSI (SAS).
	CEVA’s technologies are licensed to leading semiconductor and original equipment manufacturer (OEM) companies in the form of intellectual property (IP). These companies design, manufacture, market and sell application-specific integrated circuits (“ASICs”) and application-specific standard products (“ASSPs”) based on CEVA’s technology to OEM companies for incorporation into a wide variety of end products.

BASIS_OF_PRESENTATION_AND_SUMM

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	'
	NOTE 2:	BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	Basis of Presentation
	The interim condensed consolidated financial statements have been prepared according to U.S Generally Accepted Accounting Principles (“U.S. GAAP”).
	The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States. In the opinion of management, all adjustments considered necessary for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2013 are not necessarily indicative of the results that may be expected for the year ending December 31, 2013. For further information, reference is made to the consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2012.
	Starting January 1, 2013, the Company consolidated other revenues within licensing revenues. Prior period numbers were conformed to the Company’s current period presentation of one revenue line titled “licensing and related revenue”.
	The significant accounting policies applied in the annual consolidated financial statements of the Company as of December 31, 2012, contained in the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 15, 2013, have been applied consistently in these unaudited interim condensed consolidated financial statements.
	Use of Estimates
	The preparation of the interim condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates, judgments and assumptions. The Company’s management believes that the estimates, judgments and assumptions used are reasonable based upon information available at the time they are made. These estimates, judgments and assumptions can affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the dates of the interim condensed consolidated financial statements, and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from these estimates.

MARKETABLE_SECURITIES

MARKETABLE SECURITIES	9 Months Ended
	Sep. 30, 2013
Cash And Cash Equivalents [Abstract]	'
MARKETABLE SECURITIES	'
	NOTE	3:     MARKETABLE SECURITIES
	The following is a summary of available-for-sale marketable securities at September 30, 2013 and December 31, 2012:
			As at September 30, 2013 (Unaudited)
			Amortized			Gross			Gross			Fair
			cost			unrealized			unrealized			value
						gains			losses
	Available-for-sale securities - matures within one year:
	Corporate bonds		$	4,110		$	12		$	(6	)	$	4,116
				4,110			12			(6	)		4,116
	Available-for-sale securities - matures after one year through three years:
	Corporate bonds			76,641			94			(348	)		76,387
				76,641			94			(348	)		76,387
	Total		$	80,751		$	106		$	(354	)	$	80,503
			As at December 31, 2012 (Audited)
			Amortized			Gross			Gross			Fair
			cost			unrealized			unrealized			value
						gains			losses
	Available-for-sale securities - matures within one year:
	Corporate bonds		$	10,964		$	73		$	(4	)	$	11,033
				10,964			73			(4	)		11,033
	Available-for-sale securities - matures after one year through three years:
	Certificates of deposits			1,960			—			(1	)		1,959
	Foreign government bond			573			2			—			575
	Corporate bonds			55,622			391			(237	)		55,776
				58,155			393			(238	)		58,310
	Total		$	69,119		$	466		$	(242	)	$	69,343
	The following table presents gross unrealized losses and fair values for those investments that were in an unrealized loss position as of September 30, 2013 and December 31, 2012, and the length of time that those investments have been in a continuous loss position:
			Less than 12 months						12 months or greater
			Fair Value			Gross			Fair			Gross
						unrealized loss			Value			unrealized
												loss
	As of September 30, 2013		$	52,475		$	(353	)	$	369		$	(1	)
	As of December 31, 2012		$	28,711		$	(241	)	$	489		$	(1	)
	As of September 30, 2013 and December 31, 2012, management believes the impairments are not other than temporary and therefore the impairment losses were recorded in accumulated other comprehensive income (loss). The Company has no intent to sell these securities and it is more likely than not that the Company will not be required to sell these securities prior to the recovery of the entire amortized cost basis.
	The following table presents gross realized gain and gross realized loss from sale of available-for-sale marketable securities:
			Nine months ended						Three months ended
			September 30,						September 30,
			2013			2012			2013			2012
			(unaudited)			(unaudited)			(unaudited)			(unaudited)
	Gross realized gain from sale of available-for-sale marketable securities		$	322		$	208		$	66		$	45
	Gross realized loss from sale of available-for-sale marketable securities		$	(21	)	$	(117	)	$	(4	)	$	(81	)

FAIR_VALUE_MEASUREMENT

FAIR VALUE MEASUREMENT	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
FAIR VALUE MEASUREMENT	'
	NOTE 4:	FAIR VALUE MEASUREMENT
	The Company measures its marketable securities and foreign currency derivative contracts at fair value. Fair value is an exit price, representing the amount that would be received for selling an asset or paid for the transfer of a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or a liability. A three-tier fair value hierarchy is established as a basis for considering such assumptions and for inputs used in the valuation methodologies in measuring fair value:
		Level I	Unadjusted quoted prices in active markets that are accessible on the measurement date for identical, unrestricted assets or liabilities;
		Level II	Quoted prices in markets that are not active, or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability; and
		Level III	Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (supported by little or no market activity).
	The Company measures its marketable securities and foreign currency derivative contracts at fair value. Marketable securities and foreign currency derivative contracts are classified within Level 2 as the valuation inputs are based on quoted prices and market observable data of similar instruments.
	The table below sets forth the Company’s assets and liabilities measured at fair value by level within the fair value hierarchy. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.
	Description		September 30,		Level I		Level II		Level III
			2013
	Assets:
	Marketable securities:
	Corporate bonds		$	80,503	$	—	$	80,503	$	—
	Foreign exchange contracts			65		—		65		—
	Total assets			80,568		—		80,568		—
	Liabilities:
	Foreign exchange contracts			6		—		6		—
	Total liabilities			6		—		6		—
	Description		December 31,		Level I		Level II		Level III
			2012
	Assets:
	Marketable securities:
	Certificates of deposits		$	1,959	$	—	$	1,959	$	—
	Foreign government bond			575		—		575		—
	Corporate bonds			66,809		—		66,809		—
	Foreign exchange contracts			216		—		216		—
	Total assets			69,559		—		69,559		—
	Liabilities:
	Foreign exchange contracts			112		—		112		—
	Total liabilities			112		—		112		—
	In addition to the assets and liabilities described above, the Company’s financial instruments also include cash, cash equivalents, short term bank deposits, trade receivables, other accounts receivable, trade payables, income taxes payable and other accounts payables. The fair values of these financial instruments were not materially different from their carrying values at September 30, 2013 due to the short-term maturities of these instruments.

GEOGRAPHIC_INFORMATION_AND_MAJ

GEOGRAPHIC INFORMATION AND MAJOR CUSTOMER DATA	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
GEOGRAPHIC INFORMATION AND MAJOR CUSTOMER DATA	'
	NOTE 5:	GEOGRAPHIC INFORMATION AND MAJOR CUSTOMER DATA
		a.	Summary information about geographic areas:
	The Company manages its business on the basis of one reportable segment: the licensing of intellectual property to semiconductor companies and electronic equipment manufacturers (see Note 1 for a brief description of the Company’s business). The following is a summary of revenues within geographic areas:
			Nine months ended						Three months ended
			September 30,						September 30,
			2013			2012			2013			2012
			(unaudited)			(unaudited)			(unaudited)			(unaudited)
	Revenues based on customer location:
	United States		$	4,706		$	8,631		$	1,482		$	2,454
	Europe and Middle East (1)			10,722			10,435			3,297			3,345
	Asia Pacific (2) (3)			19,506			21,644			5,226			6,207
			$	34,934		$	40,710		$	10,005		$	12,006
	(1) Germany		$	4,424		$	5,026		$	*	)	$	1,627
	(2) China		$	15,214		$	13,674		$	4,385		$	4,380
	(3) Japan		$	*	)	$	4,323		$	*	)	$	*	)
	*)	Less than 10%
		b.	Major customer data as a percentage of total revenues:
	The following table sets forth the customers that represented 10% or more of the Company’s total revenues in each of the periods set forth below.
			Nine months ended						Three months ended
			September 30,						September 30,
			2013			2012			2013			2012
			(unaudited)			(unaudited)			(unaudited)			(unaudited)
	Customer A			31	%		27	%		26	%		24	%
	Customer B			13	%		12	%		*	)		14	%
	Customer C			*	)		12	%		*	)		12	%
	Customer D			*	)		*	)		*	)		11	%
	*)	Less than 10%

NET_INCOME_LOSS_PER_SHARE_OF_C

NET INCOME (LOSS) PER SHARE OF COMMON STOCK	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
NET INCOME (LOSS) PER SHARE OF COMMON STOCK	'
	NOTE	6:     NET INCOME (LOSS) PER SHARE OF COMMON STOCK
	Basic net income (loss) per share is computed based on the weighted average number of shares of common stock outstanding during each period. Diluted net income (loss) per share is computed based on the weighted average number of shares of common stock outstanding during each period, plus dilutive potential shares of common stock considered outstanding during the period, in accordance with FASB ASC No. 260, “Earnings Per Share.”
			Nine months ended				Three months ended
			September 30,				September 30,
			2013		2012		2013			2012
			(unaudited)		(unaudited)		(unaudited)			(unaudited)
	Numerator:
	Net income (loss)		$	3,557	$	10,930	$	(323	)	$	2,594
	Denominator (in thousands):
	Weighted-average common stock outstanding			22,118		22,965		22,072			22,526
	Effect of stock options and stock appreciation rights			483		600		—			493
	Diluted weighted average common stock outstanding			22,601		23,565		22,072			23,019
	Basic net income (loss) per share		$	0.16	$	0.48	$	(0.01	)	$	0.12
	Diluted net income (loss) per share		$	0.16	$	0.46	$	(0.01	)	$	0.11
	The weighted average number of shares related to outstanding options and stock appreciation rights excluded from the calculation of diluted net income (loss) per share, since their effect was anti-dilutive, was 3,164,713 and 1,577,101 shares for the three and nine months ended September 30, 2013, respectively, and 1,270,801 and 927,913 shares for the corresponding periods of 2012.

COMMON_STOCK_AND_STOCKBASED_CO

COMMON STOCK AND STOCK-BASED COMPENSATION PLANS	9 Months Ended
	Sep. 30, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
COMMON STOCK AND STOCK-BASED COMPENSATION PLANS	'
	NOTE	7:     COMMON STOCK AND STOCK-BASED COMPENSATION PLANS
	The Company grants stock options and stock appreciation rights (“SARs”) capped with a ceiling to employees and stock options to non-employee directors of the Company and its subsidiaries and provides the right to purchase common stock pursuant to the Company’s 2002 employee stock purchase plan to employees of the Company and its subsidiaries. The SAR unit confers the holder the right to stock appreciation over a preset price of the Company’s common stock during a specified period of time. When the unit is exercised, the appreciation amount is paid through the issuance of shares of the Company’s common stock. The ceiling limits the maximum income for each SAR unit. SARs are considered an equity instrument as it is a net share settled award capped with a ceiling (400% for SAR grants made during both the three and nine months ended September 30, 2013). The options and SARs granted under the company’s stock incentive plans have been granted at the fair market value of the Company’s common stock on the grant date. Options and SARs granted to employees under stock incentive plans vest at a rate of 25% of the shares underlying the option after one year and the remaining shares vest in equal portions over the following 36 months, such that all shares are vested after four years. Options granted to non-employee directors vest 25% of the shares underlying the option on each anniversary of the option grant. A summary of the Company’s stock option and SARs activities and related information for the nine months ended September 30, 2013, are as follows:
			Number of			Weighted		Weighted
			options and			average		average		Aggregate
			SAR units			exercise		remaining		intrinsic-
						price		contractual		value
								term
	Outstanding as of December 31, 2012			2,546,117		$	15.88
	Granted (1)			810,250			16.72
	Options/SAR units exercised			(139,192	)		8.15
	Options/SAR units forfeited or expired			(65,538	)		22.63
	Outstanding as of September 30, 2013 (2)			3,151,637		$	16.3		5	$	9,438,131
	Exercisable as of September 30, 2013 (3)			1,535,800		$	14.51		3.4	$	7,871,821
		-1	Included 678,250 SAR units which are convertible for a maximum number of shares of the Company’s common stock equal to 75% of the SAR units subject to the grant.
		-2	Due to the ceiling imposed on the SAR grants, the outstanding amount equals a maximum of 2,848,877 shares of the Company’s common stock issuable upon exercise.
		-3	Due to the ceiling imposed on the SAR grants, the exercisable amount equals a maximum of 1,499,082 shares of the Company’s common stock issuable upon exercise.
	The following table shows the total equity-based compensation expense included in the interim condensed consolidated statements of operations:
			Nine months ended					Three months ended
			September 30,					September 30,
			2013			2012		2013		2012
			(unaudited)			(unaudited)		(unaudited)		(unaudited)
	Cost of revenue		$	223		$	177	$	73	$	73
	Research and development, net			1,489			1,327		634		468
	Sales and marketing			1,021			723		393		284
	General and administrative			1,691			1,461		660		541
	Total equity-based compensation expense		$	4,424		$	3,688	$	1,760	$	1,366
	The fair value for the Company’s stock options and SARs (other than share issuances in connection with the employee stock purchase plan, as detailed below) granted to employees and non-employees directors was estimated using the following assumptions:
			Nine months ended					Three months ended
			September 30,					September 30,
			2013			2012		2013		2012
			(unaudited)			(unaudited)		(unaudited)		(unaudited)
	Expected dividend yield			0%			0%		0%		0%
	Expected volatility			38%-54%			47%-58%		39%-53%		47%-55%
	Risk-free interest rate			0.1%-2.5%			0.1%-1.2%		0.1%-2.0%		0.2%-1.0%
	Expected forfeiture (employees)			10%			10%		10%		10%
	Expected forfeiture (executives)			5%			5%		—		5%
	Contractual term of up to			10 Years			10 Years		7 Years		7 Years
	Suboptimal exercise multiple (employees)			2.1			2.1		2.1		2.1
	Suboptimal exercise multiple (executives)			2.4			2.4		—		2.4
	The fair value for rights to purchase shares of common stock under the Company’s employee stock purchase plan was estimated on the date of grant using the following assumptions:
			Nine months ended					Three months ended
			September 30,					September 30,
			2013			2012		2013		2012
			(unaudited)			(unaudited)		(unaudited)		(unaudited)
	Expected dividend yield			0%			0%		0%		0%
	Expected volatility			34%-53%			41%-61%		34%-52%		47%-55%
	Risk-free interest rate			0.1%-0.2%			0.1%-0.6%		0.1%-0.2%		0.2%-1.0%
	Expected forfeiture			0%			0%		0%		0%
	Contractual term of up to			24 months			24 months		24 months		24 months
	As of September 30, 2013, there was $7,104 of unrecognized compensation expense related to unvested equity awards. This amount is expected to be recognized over a weighted-average period of 1.4 years. To the extent the actual forfeiture rate is different from what the Company has estimated equity-based compensation related to these awards will be different from the Company’s expectations.

DERIVATIVES_AND_HEDGING_ACTIVI

DERIVATIVES AND HEDGING ACTIVITIES	9 Months Ended
	Sep. 30, 2013
Derivative Instruments And Hedging Activities Disclosure [Abstract]	'
DERIVATIVES AND HEDGING ACTIVITIES	'
	NOTE 8:	DERIVATIVES AND HEDGING ACTIVITIES
	The Company follows the requirements of FASB ASC No. 815,” Derivatives and Hedging” which requires companies to recognize all of their derivative instruments as either assets or liabilities in the statement of financial position at fair value. The accounting for changes in fair value (i.e., gains or losses) of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging transaction and further, on the type of hedging transaction. For those derivative instruments that are designated and qualify as hedging instruments, a company must designate the hedging instrument, based upon the exposure being hedged, as a fair value hedge, cash flow hedge, or a hedge of a net investment in a foreign operation. Due to the Company’s global operations, it is exposed to foreign currency exchange rate fluctuations in the normal course of its business. The Company’s treasury policy allows it to offset the risks associated with the effects of certain foreign currency exposures through the purchase of foreign exchange forward or option contracts (“Hedging Contracts”). The policy, however, prohibits the Company from speculating on such Hedging Contracts for profit. To protect against the increase in value of forecasted foreign currency cash flow resulting from salaries paid in currencies other than the U.S. dollar during the year, the Company instituted a foreign currency cash flow hedging program. The Company hedges portions of the anticipated payroll of its non-U.S. employees denominated in the currencies other than the U.S. dollar for a period of one to twelve months with Hedging Contracts. Accordingly, when the dollar strengthens against the foreign currencies, the decline in present value of future foreign currency expenses is offset by losses in the fair value of the Hedging Contracts. Conversely, when the dollar weakens, the increase in the present value of future foreign currency expenses is offset by gains in the fair value of the Hedging Contracts. These Hedging Contracts are designated as cash flow hedges.
	For derivative instruments that are designated and qualify as a cash flow hedge (i.e., hedging the exposure to variability in expected future cash flows that is attributable to a particular risk), the effective portion of the gain or loss on the derivative instrument is reported as a component of other comprehensive income (loss) and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings. Any gain or loss on a derivative instrument in excess of the cumulative change in the present value of future cash flows of the hedged item is recognized in current earnings during the period of change. As of September 30, 2013 and December 31, 2012, the notional principal amount of the Hedging Contracts to sell U.S. dollars held by the Company was $1,500 and $5,400, respectively.
	Other derivative instruments that are not qualified as hedging instruments consist of forward contracts that the Company uses to hedge monetary assets denominated in currencies other than the U.S. dollar. Gains and losses on these contracts as well as related costs are included in financial income, net, along with the gains and losses of the related hedged item. As of September 30, 2013 and December 31, 2012, the notional principal amount of the foreign exchange contracts to sell New Israeli Shekels (“NIS”) held by the Company was $0 and $2,610, respectively.
	The fair value of the Company’s outstanding derivative instruments is as follows:
			As at			As at
			September			December 31,
			30,
			2013			2012
			(Unaudited)			(Audited)
	Derivative assets:
	Derivatives designated as cash flow hedging instruments:
	Foreign exchange option contracts		$	—		$	158
	Foreign exchange forward contracts			65			58
	Total		$	65		$	216
	Derivative liabilities:
	Derivatives designated as cash flow hedging instruments:
	Foreign exchange forward contracts		$	6		$	—
	Derivatives not qualified as hedging instruments:
	Foreign exchange forward contracts			—			112
	Total		$	6		$	112
	The Company recorded the fair value of derivative assets in “prepaid expenses and other accounts receivable” and the fair value of derivative liabilities in “accrued expenses and other payables” on the Company’s interim condensed consolidated balance sheets.
	The increase in gains (losses) recognized in “accumulated other comprehensive income (loss)” on derivatives, before tax effect, is as follows:
			Nine months ended						Three months ended
			September 30,						September 30,
			2013			2012			2013			2012
			(unaudited)			(unaudited)			(unaudited)			(unaudited)
	Derivatives designated as cash flow hedging instruments:
	Foreign exchange option contracts		$	108		$	(11	)	$	15		$	27
	Foreign exchange forward contracts			187			(11	)		62			7
			$	295		$	(22	)	$	77		$	34
	The gains (losses) reclassified from “accumulated other comprehensive income (loss)” into income, are as follows:
			Nine months ended						Three months ended
			September 30,						September 30,
			2013			2012			2013			2012
			(unaudited)			(unaudited)			(unaudited)			(unaudited)
	Derivatives designated as cash flow hedging instruments:
	Foreign exchange option contracts		$	(266	)	$	129		$	(108	)	$	48
	Foreign exchange forward contracts			(186	)		93			(56	)		34
			$	(452	)	$	222		$	(164	)	$	82
	The Company recorded in cost of revenues and operating expenses a net gain of $164 and $452 during the three and nine months ended September 30, 2013, respectively, and a net loss of $82 and $222 for the comparable periods of 2012, related to its Hedging Contracts. In addition, the Company recorded in financial income, net, a gain of $0 and $112 during the three and nine months ended September 30, 2013, respectively, and a loss of $5 and a gain of $17 during the comparable periods of 2012, related to derivatives not qualified as hedging instruments.

ACCUMULATED_OTHER_COMPREHENSIV

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	9 Months Ended
	Sep. 30, 2013
Text Block [Abstract]	'
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	'
	NOTE	9:     ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
	The following table summarizes the changes in accumulated balances of other comprehensive income (loss) for the three and nine months ended September 30, 2013:
	Three months ended September 30, 2013
			Unrealized			Unrealized			Estimated			Total
			gains (losses) on			gains (losses)			tax (expense)
			available-for-			on cash flow			benefit
			sale marketable			hedges
			securities
	Beginning balance		$	(704	)	$	146		$	191		$	(367	)
	Other comprehensive income (loss) before reclassifications			518			77			(160	)		435
	Amounts reclassified from accumulated other comprehensive income (loss)			(62	)		(164	)		37			(189	)
	Net current period other comprehensive income (loss)			456			(87	)		(123	)		246
	Ending balance		$	(248	)	$	59		$	68		$	(121	)
	Nine months ended September 30, 2013
			Unrealized			Unrealized			Estimated			Total
			gains (losses) on			gains (losses)			tax (expense)
			available-for-			on cash flow			benefit
			sale marketable			hedges
			securities
	Beginning balance		$	224		$	216		$	(80	)	$	360
	Other comprehensive income (loss) before reclassifications			(171	)		295			14			138
	Amounts reclassified from accumulated other comprehensive income (loss)			(301	)		(452	)		134			(619	)
	Net current period other comprehensive income (loss)			(472	)		(157	)		148			(481	)
	Ending balance		$	(248	)	$	59		$	68		$	(121	)
	The following table provides details about reclassifications out of accumulated other comprehensive income (loss):
	Details about Accumulated Other		Amount Reclassified from Accumulated Other						Affected Line Item in the
	Comprehensive Income Components		Comprehensive Income						Statements of Operations
			Nine months ended			Three months ended
			September 30, 2013			September 30, 2013
			(unaudited)			(unaudited)
	Unrealized gains on cash flow hedges		$	13		$	4		Cost of revenues
				374			138		Research and development
				27			8		Sales and marketing
				38			14		General and administrative
				452			164		Total, before income taxes
				(46	)		(17	)	Provision for income taxes
				406			147		Total, net of income taxes
	Unrealized gains on available-for-sale marketable securities			301			62		Financial income, net
				(88	)		(20	)	Provision for income taxes
				213			42		Total, net of income taxes
			$	619		$	189		Total, net of income taxes

SHARE_REPURCHASE_PROGRAM

SHARE REPURCHASE PROGRAM	9 Months Ended
	Sep. 30, 2013
Text Block [Abstract]	'
SHARE REPURCHASE PROGRAM	'
	NOTE	10:     SHARE REPURCHASE PROGRAM
	In January 2012, the Company’s Board of Directors reaffirmed its authorization for the repurchase by the Company of 1,966,700 shares of common stock pursuant to Rule 10b-18 of the Securities Exchange Act of 1934, as amended. In July 2013, the Company’s Board of Directors authorized the repurchase by the Company of an additional 2,000,000 shares of common stock pursuant to Rule 10b-18 of the Exchange Act.
	During the third quarter of 2013, the Company repurchased 138,200 shares of common stock at an average purchase price of $16.92 per share for an aggregate purchase price of $2,338. During the third quarter of 2012, the Company repurchased 172,480 shares of common stock at an average purchase price of $16.58 per share for an aggregate purchase price of $2,859. During the first nine months ended September 30, 2013, the Company repurchased 442,938 shares of common stock at an average purchase price of $16.23 per share for an aggregate purchase price of $7,189. During the first nine months ended September 30, 2012, the Company repurchased 1,239,222 shares of common stock at an average purchase price of $19.09 per share for an aggregate purchase price of $23,652. As of September 30, 2013, 2,041,214 shares of common stock remained available for repurchase under the Company’s share repurchase program.
	The repurchases of common stock are accounted for as treasury stock, and result in a reduction of stockholders’ equity. When treasury shares are reissued, the Company accounts for the reissuance in accordance with FASB ASC No. 505-30, “Treasury Stock” and charges the excess of the repurchase cost over issuance price using the weighted average method to retained earnings. The purchase cost is calculated based on the specific identified method. In the case where the repurchase cost over issuance price using the weighted average method is lower than the issuance price, the Company credits the difference to additional paid-in capital.

RECENTLY_ADOPTED_ACCOUNTING_PR

RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS	9 Months Ended
	Sep. 30, 2013
Accounting Changes And Error Corrections [Abstract]	'
RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS	'
	NOTE 11:	RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS
	In February 2013, the Financial Accounting Standards Board issued Accounting Standards Update (ASU) No. 2013-02, Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income which is effective prospectively for public companies for reporting periods beginning after December 15, 2012. This new accounting standard improves the reporting of reclassifications out of accumulated other comprehensive income (“AOCI”) by requiring an entity to report the effect of significant reclassifications out of AOCI. The Company adopted this new guidance on January 1, 2013, and the adoption did not have a material effect on the Company’s financial position or results of operations.

BASIS_OF_PRESENTATION_AND_SUMM1

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Basis of Presentation	'
	Basis of Presentation
	The interim condensed consolidated financial statements have been prepared according to U.S Generally Accepted Accounting Principles (“U.S. GAAP”).
	The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States. In the opinion of management, all adjustments considered necessary for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2013 are not necessarily indicative of the results that may be expected for the year ending December 31, 2013. For further information, reference is made to the consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2012.
	Starting January 1, 2013, the Company consolidated other revenues within licensing revenues. Prior period numbers were conformed to the Company’s current period presentation of one revenue line titled “licensing and related revenue”.
	The significant accounting policies applied in the annual consolidated financial statements of the Company as of December 31, 2012, contained in the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 15, 2013, have been applied consistently in these unaudited interim condensed consolidated financial statements.
Use of Estimates	'
	Use of Estimates
	The preparation of the interim condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates, judgments and assumptions. The Company’s management believes that the estimates, judgments and assumptions used are reasonable based upon information available at the time they are made. These estimates, judgments and assumptions can affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the dates of the interim condensed consolidated financial statements, and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from these estimates.

MARKETABLE_SECURITIES_Tables

MARKETABLE SECURITIES (Tables)	9 Months Ended
	Sep. 30, 2013
Cash And Cash Equivalents [Abstract]	'
Summary of Maturity of Available for Sale Marketable Securities	'
	The following is a summary of available-for-sale marketable securities at September 30, 2013 and December 31, 2012:
		As at September 30, 2013 (Unaudited)
		Amortized			Gross			Gross			Fair
		cost			unrealized			unrealized			value
					gains			losses
	Available-for-sale securities - matures within one year:
	Corporate bonds	$	4,110		$	12		$	(6	)	$	4,116
			4,110			12			(6	)		4,116
	Available-for-sale securities - matures after one year through three years:
	Corporate bonds		76,641			94			(348	)		76,387
			76,641			94			(348	)		76,387
	Total	$	80,751		$	106		$	(354	)	$	80,503
		As at December 31, 2012 (Audited)
		Amortized			Gross			Gross			Fair
		cost			unrealized			unrealized			value
					gains			losses
	Available-for-sale securities - matures within one year:
	Corporate bonds	$	10,964		$	73		$	(4	)	$	11,033
			10,964			73			(4	)		11,033
	Available-for-sale securities - matures after one year through three years:
	Certificates of deposits		1,960			—			(1	)		1,959
	Foreign government bond		573			2			—			575
	Corporate bonds		55,622			391			(237	)		55,776
			58,155			393			(238	)		58,310
	Total	$	69,119		$	466		$	(242	)	$	69,343
Summary of Gross Unrealized Losses and Fair Values on Investments	'
	The following table presents gross unrealized losses and fair values for those investments that were in an unrealized loss position as of September 30, 2013 and December 31, 2012, and the length of time that those investments have been in a continuous loss position:
		Less than 12 months						12 months or greater
		Fair Value			Gross			Fair Value			Gross
					unrealized loss						unrealized loss
	As of September 30, 2013	$	52,475		$	(353	)	$	369		$	(1	)
	As of December 31, 2012	$	28,711		$	(241	)	$	489		$	(1	)
Summary of Gross Realized Gain and Loss from Sale of Available-for-Sale Marketable Securities	'
	The following table presents gross realized gain and gross realized loss from sale of available-for-sale marketable securities:
		Nine months ended						Three months ended
		September 30,						September 30,
		2013			2012			2013			2012
		(unaudited)			(unaudited)			(unaudited)			(unaudited)
	Gross realized gain from sale of available-for-sale marketable securities	$	322		$	208		$	66		$	45
	Gross realized loss from sale of available-for-sale marketable securities	$	(21	)	$	(117	)	$	(4	)	$	(81	)

FAIR_VALUE_MEASUREMENT_Tables

FAIR VALUE MEASUREMENT (Tables)	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Measurement	'
	The table below sets forth the Company’s assets and liabilities measured at fair value by level within the fair value hierarchy. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.
	Description	September 30,		Level I		Level II		Level III
		2013
	Assets:
	Marketable securities:
	Corporate bonds	$	80,503	$	—	$	80,503	$	—
	Foreign exchange contracts		65		—		65		—
	Total assets		80,568		—		80,568		—
	Liabilities:
	Foreign exchange contracts		6		—		6		—
	Total liabilities		6		—		6		—
	Description	December 31,		Level I		Level II		Level III
		2012
	Assets:
	Marketable securities:
	Certificates of deposits	$	1,959	$	—	$	1,959	$	—
	Foreign government bond		575		—		575		—
	Corporate bonds		66,809		—		66,809		—
	Foreign exchange contracts		216		—		216		—
	Total assets		69,559		—		69,559		—
	Liabilities:
	Foreign exchange contracts		112		—		112		—
	Total liabilities		112		—		112		—

GEOGRAPHIC_INFORMATION_AND_MAJ1

GEOGRAPHIC INFORMATION AND MAJOR CUSTOMER DATA (Tables)	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
Revenues Based on Customer Location	'
	The following is a summary of revenues within geographic areas:
			Nine months ended						Three months ended
			September 30,						September 30,
			2013			2012			2013			2012
			(unaudited)			(unaudited)			(unaudited)			(unaudited)
	Revenues based on customer location:
	United States		$	4,706		$	8,631		$	1,482		$	2,454
	Europe and Middle East (1)			10,722			10,435			3,297			3,345
	Asia Pacific (2) (3)			19,506			21,644			5,226			6,207
			$	34,934		$	40,710		$	10,005		$	12,006
	(1) Germany		$	4,424		$	5,026		$	*	)	$	1,627
	(2) China		$	15,214		$	13,674		$	4,385		$	4,380
	(3) Japan		$	*	)	$	4,323		$	*	)	$	*	)
	*)	Less than 10%
Major Customers Data as Percentage of Total Revenue	'
	The following table sets forth the customers that represented 10% or more of the Company’s total revenues in each of the periods set forth below.
			Nine months ended						Three months ended
			September 30,						September 30,
			2013			2012			2013			2012
			(unaudited)			(unaudited)			(unaudited)			(unaudited)
	Customer A			31	%		27	%		26	%		24	%
	Customer B			13	%		12	%		*	)		14	%
	Customer C			*	)		12	%		*	)		12	%
	Customer D			*	)		*	)		*	)		11	%
	*)	Less than 10%

NET_INCOME_LOSS_PER_SHARE_OF_C1

NET INCOME (LOSS) PER SHARE OF COMMON STOCK (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Calculation of Numerator and Denominator in Earnings Per Share	'
	Diluted net income (loss) per share is computed based on the weighted average number of shares of common stock outstanding during each period, plus dilutive potential shares of common stock considered outstanding during the period, in accordance with FASB ASC No. 260, “Earnings Per Share.”
		Nine months ended				Three months ended
		September 30,				September 30,
		2013		2012		2013			2012
		(unaudited)		(unaudited)		(unaudited)			(unaudited)
	Numerator:
	Net income (loss)	$	3,557	$	10,930	$	(323	)	$	2,594
	Denominator (in thousands):
	Weighted-average common stock outstanding		22,118		22,965		22,072			22,526
	Effect of stock options and stock appreciation rights		483		600		—			493
	Diluted weighted average common stock outstanding		22,601		23,565		22,072			23,019
	Basic net income (loss) per share	$	0.16	$	0.48	$	(0.01	)	$	0.12
	Diluted net income (loss) per share	$	0.16	$	0.46	$	(0.01	)	$	0.11

COMMON_STOCK_AND_STOCKBASED_CO1

COMMON STOCK AND STOCK-BASED COMPENSATION PLANS (Tables)	9 Months Ended
	Sep. 30, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Summary of Stock Option Activity	'
	A summary of the Company’s stock option and SARs activities and related information for the nine months ended September 30, 2013, are as follows:
			Number of			Weighted			Weighted
			options and			average			average			Aggregate
			SAR units			exercise			remaining			intrinsic-
						price			contractual			value
									term
	Outstanding as of December 31, 2012			2,546,117		$	15.88
	Granted (1)			810,250			16.72
	Options/SAR units exercised			(139,192	)		8.15
	Options/SAR units forfeited or expired			(65,538	)		22.63
	Outstanding as of September 30, 2013 (2)			3,151,637		$	16.3			5		$	9,438,131
	Exercisable as of September 30, 2013 (3)			1,535,800		$	14.51			3.4		$	7,871,821
		-1	Included 678,250 SAR units which are convertible for a maximum number of shares of the Company’s common stock equal to 75% of the SAR units subject to the grant.
		-2	Due to the ceiling imposed on the SAR grants, the outstanding amount equals a maximum of 2,848,877 shares of the Company’s common stock issuable upon exercise.
		-3	Due to the ceiling imposed on the SAR grants, the exercisable amount equals a maximum of 1,499,082 shares of the Company’s common stock issuable upon exercise.
Equity-Based Compensation Expense Included in Interim Condensed Consolidated Statements of Operations	'
	The following table shows the total equity-based compensation expense included in the interim condensed consolidated statements of operations:
			Nine months ended						Three months ended
			September 30,						September 30,
			2013			2012			2013			2012
			(unaudited)			(unaudited)			(unaudited)			(unaudited)
	Cost of revenue		$	223		$	177		$	73		$	73
	Research and development, net			1,489			1,327			634			468
	Sales and marketing			1,021			723			393			284
	General and administrative			1,691			1,461			660			541
	Total equity-based compensation expense		$	4,424		$	3,688		$	1,760		$	1,366
Assumptions Used to Estimate Fair Value of Stock Options Granted and SARs Granted to Employees	'
	The fair value for the Company’s stock options and SARs (other than share issuances in connection with the employee stock purchase plan, as detailed below) granted to employees and non-employees directors was estimated using the following assumptions:
			Nine months ended						Three months ended
			September 30,						September 30,
			2013			2012			2013			2012
			(unaudited)			(unaudited)			(unaudited)			(unaudited)
	Expected dividend yield			0	%		0	%		0	%		0	%
	Expected volatility			38%-54	%		47%-58	%		39%-53	%		47%-55	%
	Risk-free interest rate			0.1%-2.5	%		0.1%-1.2	%		0.1%-2.0	%		0.2%-1.0	%
	Expected forfeiture (employees)			10	%		10	%		10	%		10	%
	Expected forfeiture (executives)			5	%		5	%		—			5	%
	Contractual term of up to			10 Years			10 Years			7 Years			7 Years
	Suboptimal exercise multiple (employees)			2.1			2.1			2.1			2.1
	Suboptimal exercise multiple (executives)			2.4			2.4			—			2.4
Assumptions Used to Estimate Fair Value of Employee Stock Purchase Plan	'
	The fair value for rights to purchase shares of common stock under the Company’s employee stock purchase plan was estimated on the date of grant using the following assumptions:
			Nine months ended						Three months ended
			September 30,						September 30,
			2013			2012			2013			2012
			(unaudited)			(unaudited)			(unaudited)			(unaudited)
	Expected dividend yield			0	%		0	%		0	%		0	%
	Expected volatility			34%-53	%		41%-61	%		34%-52	%		47%-55	%
	Risk-free interest rate			0.1%-0.2	%		0.1%-0.6	%		0.1%-0.2	%		0.2%-1.0	%
	Expected forfeiture			0	%		0	%		0	%		0	%
	Contractual term of up to			24 months			24 months			24 months			24 months

DERIVATIVES_AND_HEDGING_ACTIVI1

DERIVATIVES AND HEDGING ACTIVITIES (Tables)	9 Months Ended
	Sep. 30, 2013
Derivative Instruments And Hedging Activities Disclosure [Abstract]	'
Fair Value of Outstanding Derivative Instruments	'
	The fair value of the Company’s outstanding derivative instruments is as follows:
		As at			As at
		September			December 31,
		30,
		2013			2012
		(Unaudited)			(Audited)
	Derivative assets:
	Derivatives designated as cash flow hedging instruments:
	Foreign exchange option contracts	$	—		$	158
	Foreign exchange forward contracts		65			58
	Total	$	65		$	216
	Derivative liabilities:
	Derivatives designated as cash flow hedging instruments:
	Foreign exchange forward contracts	$	6		$	—
	Derivatives not qualified as hedging instruments:
	Foreign exchange forward contracts		—			112
	Total	$	6		$	112
Increase in Gains (Losses) Recognized in "Accumulated Other Comprehensive Income ( Loss)" on Derivatives, Before Tax Effect	'
	The increase in gains (losses) recognized in “accumulated other comprehensive income (loss)” on derivatives, before tax effect, is as follows:
		Nine months ended						Three months ended
		September 30,						September 30,
		2013			2012			2013			2012
		(unaudited)			(unaudited)			(unaudited)			(unaudited)
	Derivatives designated as cash flow hedging instruments:
	Foreign exchange option contracts	$	108		$	(11	)	$	15		$	27
	Foreign exchange forward contracts		187			(11	)		62			7
		$	295		$	(22	)	$	77		$	34
Gain (Losses) Reclassified from "Accumulated Other Comprehensive Income (Loss)"	'
	The gains (losses) reclassified from “accumulated other comprehensive income (loss)” into income, are as follows:
		Nine months ended						Three months ended
		September 30,						September 30,
		2013			2012			2013			2012
		(unaudited)			(unaudited)			(unaudited)			(unaudited)
	Derivatives designated as cash flow hedging instruments:
	Foreign exchange option contracts	$	(266	)	$	129		$	(108	)	$	48
	Foreign exchange forward contracts		(186	)		93			(56	)		34
		$	(452	)	$	222		$	(164	)	$	82

ACCUMULATED_OTHER_COMPREHENSIV1

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)	9 Months Ended
	Sep. 30, 2013
Text Block [Abstract]	'
Changes in Accumulated Balances of Other Comprehensive Income (Loss)	'
	The following table summarizes the changes in accumulated balances of other comprehensive income (loss) for the three and nine months ended September 30, 2013:
	Three months ended September 30, 2013
		Unrealized			Unrealized			Estimated			Total
		gains (losses) on			gains (losses)			tax (expense)
		available-for-			on cash flow			benefit
		sale marketable			hedges
		securities
	Beginning balance	$	(704	)	$	146		$	191		$	(367	)
	Other comprehensive income (loss) before reclassifications		518			77			(160	)		435
	Amounts reclassified from accumulated other comprehensive income (loss)		(62	)		(164	)		37			(189	)
	Net current period other comprehensive income (loss)		456			(87	)		(123	)		246
	Ending balance	$	(248	)	$	59		$	68		$	(121	)
	Nine months ended September 30, 2013
		Unrealized			Unrealized			Estimated			Total
		gains (losses) on			gains (losses)			tax (expense)
		available-for-			on cash flow			benefit
		sale marketable			hedges
		securities
	Beginning balance	$	224		$	216		$	(80	)	$	360
	Other comprehensive income (loss) before reclassifications		(171	)		295			14			138
	Amounts reclassified from accumulated other comprehensive income (loss)		(301	)		(452	)		134			(619	)
	Net current period other comprehensive income (loss)		(472	)		(157	)		148			(481	)
	Ending balance	$	(248	)	$	59		$	68		$	(121	)
Details about Accumulated Other Comprehensive Income (Loss) Components	'
	The following table provides details about reclassifications out of accumulated other comprehensive income (loss):
	Details about Accumulated Other	Amount Reclassified from Accumulated Other						Affected Line Item in the
	Comprehensive Income Components	Comprehensive Income						Statements of Operations
		Nine months ended			Three months ended
		September 30, 2013			September 30, 2013
		(unaudited)			(unaudited)
	Unrealized gains on cash flow hedges	$	13		$	4		Cost of revenues
			374			138		Research and development
			27			8		Sales and marketing
			38			14		General and administrative
			452			164		Total, before income taxes
			(46	)		(17	)	Provision for income taxes
			406			147		Total, net of income taxes
	Unrealized gains on available-for-sale marketable securities		301			62		Financial income, net
			(88	)		(20	)	Provision for income taxes
			213			42		Total, net of income taxes
		$	619		$	189		Total, net of income taxes

Summary_of_AvailableforSale_Ma

Summary of Available-for-Sale Marketable Securities (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale securities - matures within one year, Amortized cost	$4,110	$10,964
Available-for-sale securities - matures after one year through three years, Amortized cost	76,641	58,155
Amortized cost, Total	80,751	69,119
Available-for-sale securities - matures within one year, Gross unrealized gains	12	73
Available-for-sale securities - matures after one year through three years, Gross unrealized gains	94	393
Gross unrealized gains, Total	106	466
Available-for-sale securities - matures within one year, Gross unrealized losses	-6	-4
Available-for-sale securities - matures after one year through three years, Gross unrealized losses	-348	-238
Gross unrealized losses, Total	-354	-242
Available-for-sale securities - matures within one year, Fair value	4,116	11,033
Available-for-sale securities - matures after one year through three years, Fair value	76,387	58,310
Fair value, Total	80,503	69,343
Corporate bonds	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale securities - matures within one year, Amortized cost	4,110	10,964
Available-for-sale securities - matures after one year through three years, Amortized cost	76,641	55,622
Available-for-sale securities - matures within one year, Gross unrealized gains	12	73
Available-for-sale securities - matures after one year through three years, Gross unrealized gains	94	391
Available-for-sale securities - matures within one year, Gross unrealized losses	-6	-4
Available-for-sale securities - matures after one year through three years, Gross unrealized losses	-348	-237
Available-for-sale securities - matures within one year, Fair value	4,116	11,033
Available-for-sale securities - matures after one year through three years, Fair value	76,387	55,776
Certificates of Deposit	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale securities - matures after one year through three years, Amortized cost	'	1,960
Available-for-sale securities - matures after one year through three years, Gross unrealized losses	'	-1
Available-for-sale securities - matures after one year through three years, Fair value	'	1,959
Foreign government bond	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale securities - matures after one year through three years, Amortized cost	'	573
Available-for-sale securities - matures after one year through three years, Gross unrealized gains	'	2
Available-for-sale securities - matures after one year through three years, Fair value	'	$575

Summary_of_Gross_Unrealized_Lo

Summary of Gross Unrealized Losses and Fair Values on Investments (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Investments Debt And Equity Securities [Abstract]	'	'
Less than 12 months, Fair Value	$52,475	$28,711
Available-for-sale securities- matures within one year, Gross unrealized losses	-353	-241
12 months or greater, Fair Value	369	489
Available-for-sale securities- matures after one year through three years, Gross unrealized losses	($1)	($1)

Summary_of_Gross_Realized_Gain

Summary of Gross Realized Gain and Loss from Sale of Available-for-Sale Marketable Securities (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Investments Debt And Equity Securities [Abstract]	'	'	'	'
Gross realized gain from sale of available-for-sale marketable securities	$66	$45	$322	$208
Gross realized loss from sale of available-for-sale marketable securities	($4)	($81)	($21)	($117)

Fair_Value_Measurement_Detail

Fair Value Measurement (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Assets:	'	'
Foreign exchange contracts	$65	$216
Total assets	80,568	69,559
Liabilities:	'	'
Foreign exchange contracts	6	112
Total liabilities	6	112
Foreign government bond	'	'
Assets:	'	'
Marketable securities	'	575
Corporate bonds	'	'
Assets:	'	'
Marketable securities	80,503	66,809
Certificates of Deposit	'	'
Assets:	'	'
Marketable securities	'	1,959
Level I	'	'
Assets:	'	'
Foreign exchange contracts	'	'
Total assets	'	'
Liabilities:	'	'
Foreign exchange contracts	'	'
Total liabilities	'	'
Level I | Foreign government bond	'	'
Assets:	'	'
Marketable securities	'	'
Level I | Corporate bonds	'	'
Assets:	'	'
Marketable securities	'	'
Level I | Certificates of Deposit	'	'
Assets:	'	'
Marketable securities	'	'
Level II	'	'
Assets:	'	'
Foreign exchange contracts	65	216
Total assets	80,568	69,559
Liabilities:	'	'
Foreign exchange contracts	6	112
Total liabilities	6	112
Level II | Foreign government bond	'	'
Assets:	'	'
Marketable securities	'	575
Level II | Corporate bonds	'	'
Assets:	'	'
Marketable securities	80,503	66,809
Level II | Certificates of Deposit	'	'
Assets:	'	'
Marketable securities	'	1,959
Level III	'	'
Assets:	'	'
Foreign exchange contracts	'	'
Total assets	'	'
Liabilities:	'	'
Foreign exchange contracts	'	'
Total liabilities	'	'
Level III | Foreign government bond	'	'
Assets:	'	'
Marketable securities	'	'
Level III | Corporate bonds	'	'
Assets:	'	'
Marketable securities	'	'
Level III | Certificates of Deposit	'	'
Assets:	'	'
Marketable securities	'	'

Revenues_Based_on_Customer_Loc

Revenues Based on Customer Location (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting Information [Line Items]	'	'	'	'
Total revenues	$10,005	$12,006	$34,934	$40,710
United States	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total revenues	1,482	2,454	4,706	8,631
Europe and Middle East	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total revenues	3,297	3,345	10,722	10,435
Asia Pacific	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total revenues	5,226	6,207	19,506	21,644
Germany	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total revenues	'	1,627	4,424	5,026
China	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total revenues	4,385	4,380	15,214	13,674
Japan	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total revenues	'	'	'	$4,323

Major_Customers_Data_as_Percen

Major Customers Data as Percentage of Total Revenue (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Customer A	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Percentage of total revenues	26.00%	24.00%	31.00%	27.00%
Customer B	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Percentage of total revenues	'	14.00%	13.00%	12.00%
Customer C	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Percentage of total revenues	'	12.00%	'	12.00%
Customer D	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Percentage of total revenues	'	11.00%	'	'

Calculation_of_Basic_and_Dilut

Calculation of 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, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Numerator:	'	'	'	'
Net income (loss)	($323)	$2,594	$3,557	$10,930
Denominator (in thousands):	'	'	'	'
Weighted-average common stock outstanding	22,072	22,526	22,118	22,965
Effect of stock options and stock appreciation rights	'	493	483	600
Diluted weighted average common stock outstanding	22,072	23,019	22,601	23,565
Basic net income (loss) per share	($0.01)	$0.12	$0.16	$0.48
Diluted net income (loss) per share	($0.01)	$0.11	$0.16	$0.46

Recovered_Sheet1

Net Income (Loss) Per Share of Common Stock - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share [Abstract]	'	'	'	'
Antidilutive shares excluded from computation of earnings per share	3,164,713	1,270,801	1,577,101	927,913

Recovered_Sheet2

Common Stock and Stock-Based Compensation Plans - Additional Information (Detail) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
Stockholders Equity Note [Line Items]	'
Options granted under stock incentive plans vesting rate, year one	25.00%
Unrecognized compensation expense	$7,104
Unrecognized compensation expense, weighted-average period of recognition	'1 year 4 months 24 days
Maximum	'
Stockholders Equity Note [Line Items]	'
Shares vesting period	'4 years
Stock appreciation rights (SARs)	'
Stockholders Equity Note [Line Items]	'
Options granted percentage	400.00%

Summary_of_Stock_Option_Activi

Summary of Stock Option Activity (Detail) (USD $)	9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013
Number of Shares Outstanding, option	'
Number of Shares Outstanding, Beginning Balance	2,546,117
Number of shares, Granted	810,250	[1]
Number of shares, Options exercised	-139,192
Number of shares, Options/SAR units forfeited or expired	-65,538
Number of Shares Outstanding, Ending Balance	3,151,637	[2]
Number of Shares Exercisable, Ending Balance	1,535,800	[3]
Weighted-average exercise price	'
Weighted-average exercise price, Beginning Balance	$15.88
Weighted-average exercise price, Granted	$16.72	[1]
Weighted-average exercise price, Options exercised	$8.15
Weighted-average exercise price, Options/SAR units forfeited or expired	$22.63
Weighted average exercise price, ending balance	$16.30	[1]
Weighted average exercise price, exercisable	$14.51	[3]
Weighted-Average Remaining Contractual Term	'
Weighted Average Remaining Contractual Life, Outstanding at end of period	'5 years	[2]
Weighted Average Remaining Contractual Life, Exercisable at end of period	'3 years 4 months 24 days	[3]
Aggregate Intrinsic Value	'
Aggregate Intrinsic Value, Outstanding	$9,438,131	[2]
Aggregate Intrinsic Value, Exercisable	$7,871,821	[3]
[1]	Included 678,250 SAR units which are convertible for a maximum number of shares of the Company's common stock equal to 75% of the SAR units subject to the grant
[2]	Due to the ceiling imposed on the SAR grants, the outstanding amount equals a maximum of 2,848,877 shares of the Company's common stock issuable upon exercise.
[3]	Due to the ceiling imposed on the SAR grants, the exercisable amount equals a maximum of 1,499,082 shares of the Company's common stock issuable upon exercise

Summary_of_Stock_Option_Activi1

Summary of Stock Option Activity (Parenthetical) (Detail)	9 Months Ended
	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares, Granted	810,250	[1]
Outstanding amount of stock appreciation right units	2,848,877
Exercisable amount of stock appreciation right units	1,499,082
Stock appreciation rights (SARs)	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares, Granted	678,250
Maximum | Stock appreciation rights (SARs)	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Maximum percentage of stock appreciation right units	75.00%
[1]	Included 678,250 SAR units which are convertible for a maximum number of shares of the Company's common stock equal to 75% of the SAR units subject to the grant

EquityBased_Compensation_Expen

Equity-Based Compensation Expense Included in Interim Condensed Consolidated Statements of Operations (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Total equity-based compensation expense	$1,760	$1,366	$4,424	$3,688
Cost of revenue	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Total equity-based compensation expense	73	73	223	177
Research and development, net	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Total equity-based compensation expense	634	468	1,489	1,327
Sales and marketing	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Total equity-based compensation expense	393	284	1,021	723
General and administrative	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Total equity-based compensation expense	$660	$541	$1,691	$1,461

Assumptions_Used_to_Estimate_F

Assumptions Used to Estimate Fair Value of Stock Options Granted, SARs Granted and Employee Share Purchase Plan Granted to Employees (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Expected dividend yield	0.00%	0.00%	0.00%	0.00%
Stock options and SARs, Expected volatility, Minimum	39.00%	47.00%	38.00%	47.00%
Stock options and SARs, Expected volatility, Maximum	53.00%	55.00%	54.00%	58.00%
Risk-free interest rate, Minimum	0.10%	0.20%	0.10%	0.10%
Risk-free interest rate, Maximum	2.00%	1.00%	2.50%	1.20%
Expected forfeiture	10.00%	10.00%	10.00%	10.00%
Expected forfeiture (executives)	'	5.00%	5.00%	5.00%
Contractual term of up to	'7 years	'7 years	'10 years	'10 years
Common Stock	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Expected dividend yield	0.00%	0.00%	0.00%	0.00%
Stock options and SARs, Expected volatility, Minimum	34.00%	47.00%	34.00%	41.00%
Stock options and SARs, Expected volatility, Maximum	52.00%	55.00%	53.00%	61.00%
Risk-free interest rate, Minimum	0.10%	0.20%	0.10%	0.10%
Risk-free interest rate, Maximum	0.20%	1.00%	0.20%	0.60%
Expected forfeiture	0.00%	0.00%	0.00%	0.00%
Contractual term of up to	'24 months	'24 months	'24 months	'24 months
Employees	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Suboptimal exercise multiple	2.1	2.1	2.1	2.1
Executives	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Suboptimal exercise multiple	'	2.4	2.4	2.4

Recovered_Sheet3

Derivatives and Hedging Activities - Additional Information (Detail) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

In Thousands, unless otherwise specified

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Dec. 31, 2012

Derivatives not qualified as hedging instruments

Derivatives not qualified as hedging instruments

Derivatives not qualified as hedging instruments

Derivatives not qualified as hedging instruments

Derivatives not qualified as hedging instruments

Derivatives not qualified as hedging instruments

Derivatives designated as cash flow hedging instruments

Derivatives designated as cash flow hedging instruments

Derivatives designated as cash flow hedging instruments

Derivatives designated as cash flow hedging instruments

Derivatives designated as cash flow hedging instruments

Derivatives designated as cash flow hedging instruments

Foreign exchange contracts

Foreign exchange contracts

Foreign exchange contracts

Foreign exchange contracts

Derivative Instruments, Gain (Loss) [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Notional principal amount of Hedging Contracts

'

'

'

'

$0

$2,610

'

'

'

'

$1,500

$5,400

Gain (loss) recognized in income, net

$0

$5

$112

$17

'

'

$164

$82

$452

$222

'

'

Fair_Value_of_Outstanding_Deri

Fair Value of Outstanding Derivative Instruments (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Derivative assets	$65	$216
Derivative liabilities	6	112
Derivatives not qualified as hedging instruments	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Derivative liabilities	'	112
Foreign exchange option contracts | Derivatives designated as cash flow hedging instruments	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Derivative assets	'	158
Foreign exchange forward contracts	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Derivative liabilities	6	'
Foreign exchange forward contracts | Derivatives designated as cash flow hedging instruments	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Derivative assets	$65	$58

Gain_Losses_Reclassified_from_

Gain (Losses) Reclassified from "Accumulated Other Comprehensive Income (Loss)" (Detail) (Derivatives designated as cash flow hedging instruments, USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Gain (loss) recognized in other comprehensive income (loss), effective portion, Net, Total	$77	$34	$295	($22)
Gain (loss) reclassified from accumulated OCI into income, effective portion, Net, Total	-164	82	-452	222
Foreign exchange option contracts	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Gain (loss) recognized in other comprehensive income (loss), effective portion, Net, Total	15	27	108	-11
Gain (loss) reclassified from accumulated OCI into income, effective portion, Net, Total	-108	48	-266	129
Foreign exchange forward contracts	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Gain (loss) recognized in other comprehensive income (loss), effective portion, Net, Total	62	7	187	-11
Gain (loss) reclassified from accumulated OCI into income, effective portion, Net, Total	($56)	$34	($186)	$93

Changes_in_Accumulated_Balance

Changes in Accumulated Balances of Other Comprehensive Income (Loss) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Beginning balance	($367)	'	$360	'
Other comprehensive income (loss) before reclassifications	435	'	138	'
Amounts reclassified from accumulated other comprehensive income (loss)	-189	'	-619	'
Net current period other comprehensive income (loss)	246	604	-481	1,181
Ending balance	-121	'	-121	'
Unrealized gains (losses) on available-for-sale marketable securities	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Beginning balance	-704	'	224	'
Other comprehensive income (loss) before reclassifications	518	'	-171	'
Amounts reclassified from accumulated other comprehensive income (loss)	-62	'	-301	'
Net current period other comprehensive income (loss)	456	'	-472	'
Ending balance	-248	'	-248	'
Unrealized gains (losses) on cash flow hedges	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Beginning balance	146	'	216	'
Other comprehensive income (loss) before reclassifications	77	'	295	'
Amounts reclassified from accumulated other comprehensive income (loss)	-164	'	-452	'
Net current period other comprehensive income (loss)	-87	'	-157	'
Ending balance	59	'	59	'
Estimated tax (expense) benefit	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Beginning balance	191	'	-80	'
Other comprehensive income (loss) before reclassifications	-160	'	14	'
Amounts reclassified from accumulated other comprehensive income (loss)	37	'	134	'
Net current period other comprehensive income (loss)	-123	'	148	'
Ending balance	$68	'	$68	'

Details_about_Accumulated_Othe

Details about Accumulated Other Comprehensive Income (Loss) Components (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Cost of revenues	$1,131	$1,046	$3,799	$2,927
Financial income, net	617	731	2,053	2,653
Research and development	5,619	4,637	16,279	15,548
Sales and marketing	2,376	2,235	7,271	6,628
General and administrative	2,006	1,940	5,588	5,658
Total, before income taxes	-510	2,879	4,050	12,602
Provision for income taxes	-187	285	493	1,672
Total, net of income taxes	-323	2,594	3,557	10,930
Reclassification out of Accumulated Other Comprehensive Income (Loss)	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Total, net of income taxes	189	'	619	'
Reclassification out of Accumulated Other Comprehensive Income (Loss) | Unrealized gains (losses) on cash flow hedges	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Cost of revenues	4	'	13	'
Research and development	138	'	374	'
Sales and marketing	8	'	27	'
General and administrative	14	'	38	'
Total, before income taxes	164	'	452	'
Provision for income taxes	-17	'	-46	'
Total, net of income taxes	147	'	406	'
Reclassification out of Accumulated Other Comprehensive Income (Loss) | Unrealized gains (losses) on available-for-sale marketable securities	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Financial income, net	62	'	301	'
Provision for income taxes	-20	'	-88	'
Total, net of income taxes	$42	'	$213	'

Share_Repurchase_Program_Addit

Share Repurchase Program - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Jan. 31, 2012	Jul. 31, 2013
					Rule 10b-18	Rule 10b-18
						Subsequent Event [Member]
Schedule Of Share Repurchase Programs [Line Items]	'	'	'	'	'	'
Common stock shares, remaining authorized	2,041,214	'	2,041,214	'	1,966,700	'
Common stock, additional number of shares authorized to repurchase	'	'	'	'	'	2,000,000
Purchase of Treasury Stock, shares	138,200	172,480	442,938	1,239,222	'	'
Purchase of Treasury Stock, per share value	$16.92	$16.58	$16.23	$19.09	'	'
Purchase of Treasury Stock	$2,338	$2,859	$7,189	$23,652	'	'