Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Organization and Summary of Significant Accounting Policies [Abstract]

Summary of Allowance for Doubtful Accounts

The following table summarizes the allowance for doubtful accounts as of December 31, 2014, 2013, and 2012 (in thousands):

	Balance at Beginning of Period		Adjustments toCosts and Expenses			Write- offs		Balance atEnd of Period
Allowance for doubtful accounts:
Year ended December 31, 2012	$	20	$	(18	)	$	0	$	2
Year ended December 31, 2013	$	2	$	(5	)	$	3	$	—
Year ended December 31, 2014	$	—	$	(10	)	$	12	$	2

Summary of Cash, Cash Equivalents and Investments

The following is a summary of cash, cash equivalents and investments at December 31, 2014 and 2013 (in thousands):

	For the Year Ended December 31,2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Cash	$	9,572	$	—	$	—		$	9,572
Money market fund		9,859		—		—			9,859
Certificates of deposit		3,600		—		(5	)		3,595
Commercial paper		2,996		—		—			2,996
Corporate notes and bonds		45,819		—		(48	)		45,771
U.S. government agency securities		2,000		—		—			2,000
	$	73,846	$	—	$	(53	)	$	73,793
Classified as:
Cash and cash equivalents	$	23,354	$	—	$	—		$	23,354
Short-term investments		50,492		—		(53	)		50,439
	$	73,846	$	—	$	(53	)	$	73,793

	For the Year Ended December 31,2013
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Cash	$	15,660	$	—	$	—		$	15,660
Money market fund		11,771		—		—			11,771
Certificates of deposit		4,258		—		(2	)		4,256
Commercial paper		7,298		—		—			7,298
Corporate notes and bonds		33,386		8		(22	)		33,372
	$	72,373	$	8	$	(24	)	$	72,357
Classified as:
Cash and cash equivalents	$	28,390	$	—	$	—		$	28,390
Short-term investments		43,983		8		(24	)		43,967
	$	72,373	$	8	$	(24	)	$	72,357

Summary of Estimated Fair Value of Available-For-Sale Securities Classified by Stated Maturity Date

The following table summarizes the estimated fair value of our available-for-sale securities classified by the stated maturity date of the security (in thousands):

	December 31,
	2014		2013
Due within one year	$	41,449	$	34,916
Due within two years		8,990		9,051
	$	50,439	$	43,967

Summary of Unrealized Losses for Available-For-Sale Investments

The following table sets forth the unrealized losses for the Company’s available-for-sale investments as of December 31, 2014 and 2013 (in thousands):

As of December 31,2014	In Loss PositionLess Than 12 Months					In Loss PositionMore Than 12 Months					Total In Loss Position
Description	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Certificate of deposits	$	1,679	$	(1	)	$	1,196	$	(4	)	$	2,875	$	(5	)
Corporate notes and bonds		35,364		(29	)		7,794		(19	)		43,158		(48	)
Total	$	37,043	$	(30	)	$	8,990	$	(23	)	$	46,033	$	(53	)
As of December 31,2013	In Loss PositionLess Than 12 Months					In Loss PositionMore Than 12 Months					Total In Loss Position
Description	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Certificate of deposits	$	3,776	$	(2	)	$	—	$	—		$	3,776	$	(2	)
Corporate notes and bonds		14,047		(10	)		8,542		(12	)		22,589		(22	)
Total	$	17,823	$	(12	)	$	8,542	$	(12	)	$	26,365	$	(24	)

Computation of Basic and Diluted Net Loss per Share

The following table sets forth the computation of basic and diluted net earnings (loss) per share (in thousands, except per share amounts):

	Year Ended December 31,
	2014			2013		2012
Net income (loss)	$	(3,483	)	$	10,383	$	(5,424	)
Basic:
Weighted-average shares of common stock outstanding		53,834			51,553		48,798
Shares used in computing basic net earnings (loss) per share		53,834			51,553		48,798
Basic net earnings (loss) per share	$	(0.06	)	$	0.20	$	(0.11	)
Diluted:
Weighted-average shares of common stock outstanding		53,834			51,553		48,798
Add: Common equivalent shares outstanding		—			2,272		—
Shares used in computing diluted net earnings (loss) per share		53,834			53,825		48,798
Diluted net earnings (loss) per share	$	(0.06	)	$	0.19	$	(0.11	)

Components of Accumulated Other Comprehensive Loss

The components of accumulated other comprehensive loss, which relate entirely to accumulated foreign currency translation losses associated with our foreign subsidiaries and unrealized losses on investments, consisted of the following (in thousands):

	Foreign Currency Translation Losses			Unrealized Losses on Investments			Total
Balance as of December 31, 2012	$	(1,501	)	$	—		$	(1,501	)
Current-period other comprehensive loss		(357	)		(16	)		(373	)
Balance as of December 31, 2013		(1,858	)		(16	)		(1,874	)
Current-period other comprehensive loss		(117	)		(37	)		(154	)
Balance as of December 31, 2014	$	(1,975	)	$	(53	)	$	(2,028	)

Fair Value of Stock-Based Awards Valuation Assumptions

The fair value of our stock-based awards was estimated using the following weighted average assumptions for the years ended December 31, 2014, 2013, and 2012:

	Stock Option Plan									Employee Stock Purchase Plan
	2014			2013			2012			2014			2013			2012
Risk-free interest rate		1.6	%		0.9	%		0.6	%		0.1	%		0.1	%		0.1	%
Expected term (in years)		5.1			3.7			3.7			0.5			0.5			0.5
Volatility		57.3	%		57.5	%		57.2	%		49.1	%		48.4	%		62.3	%
Expected dividend		0	%		0	%		0	%		0	%		0	%		0	%
Weighted average grant-date fair value	$	1.17		$	2.02		$	1.30		$	0.64		$	1.24		$	1.15

Stock-Based Compensation Expense

We recorded the following stock-based compensation expense for the fiscal years ended December 31, 2014, 2013, and 2012 (in thousands):

	For the Year Ended December 31,
	2014		2013		2012
Stock-based compensation expense related to grants of:
Stock options	$	1,110	$	1,642	$	4,276
ESPP		110		106		80
RSU		1,654		1,733		169
		2,874	$	3,481	$	4,525
Stock-based compensation expense recognized in:
Cost of service	$	267	$	332	$	354
Cost of software and others		14		12		26
Research and development		479		766		1,019
Sales and marketing		413		412		483
General and administrative		1,701		1,959		2,643
	$	2,874	$	3,481	$	4,525

Fair Value Hierarchy for Financial Assets Measured at Fair Value on Recurring Basis

In accordance with ASC 820, the following table represents our fair value hierarchy for our financial assets (cash equivalents and investments) measured at fair value on a recurring basis as of December 31, 2014 and 2013 (in thousands):

As of December 31,2014	Level 1			Level 2			Level 3			Total
Money market funds		$	9,859		$	—		$	—		$	9,859
Certificates of deposits			—			3,595			—			3,595
Commercial paper			—			2,996			—			2,996
Corporate notes and bonds			—			45,771			—			45,771
U.S. government agency securities			—			2,000			—			2,000
Total		$	9,859		$	54,362		$	—		$	64,221
As of December 31,2013	Level 1			Level 2			Level 3			Total
Money market funds		$	11,771		$	—		$	—		$	11,771
Certificates of deposits			4,256			—			—			4,256
Commercial paper			—			7,298			—			7,298
Corporate notes and bonds			—			33,372			—			33,372
Total		$	16,027		$	40,670		$	—		$	56,697

Summary of Long-Lived Assets by Geographic Areas

Long-lived assets are attributed to the geographic location in which they are located.  We include in long-lived assets all tangible assets.  Long-lived assets by geographic areas are as follows (in thousands):

	December 31,
	2014			2013
United States		$	376		$	419
India			41			42
Total		$	417		$	461