Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2017

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, 2017 and 2016 (in thousands):

	Balance at Beginning of Period		Adjustments to Costs and Expenses		Write- offs			Balance at End of Period
Allowance for doubtful accounts:
Year ended December 31, 2016	$	6	$	37	$	(24	)	$	19
Year ended December 31, 2017	$	19	$	34	$	(44	)	$	9

Summary of Cash, Cash Equivalents and Investments

The following is a summary of cash, cash equivalents and investments at December 31, 2017 and 2016 (in thousands):

	For the Year Ended December 31, 2017
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Cash	$	7,408	$	—	$	—		$	7,408
Money market fund		10,643		—		(1	)		10,642
Certificates of deposit		1,207		—		(2	)		1,205
Commercial paper		2,494		—		(1	)		2,493
Corporate notes and bonds		22,846		—		(76	)		22,770
U.S. government agency securities		4,719		—		(4	)		4,715
	$	49,317	$	—	$	(84	)	$	49,233
Classified as:
Cash and cash equivalents	$	18,051	$	—	$	(1	)	$	18,050
Short-term investments		31,266		—		(83	)		31,183
	$	49,317	$	—	$	(84	)	$	49,233

	For the Year Ended December 31, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Cash	$	7,593	$	—	$	—		$	7,593
Money market fund		9,297		—		—			9,297
Certificates of deposit		1,273		—		—			1,273
Commercial paper		4,989		—		—			4,989
Corporate notes and bonds		19,357		—		(40	)		19,317
U.S. government agency securities		10,941		1		(2	)		10,940
	$	53,450	$	1	$	(42	)	$	53,409
Classified as:
Cash and cash equivalents	$	16,890	$	—	$	—		$	16,890
Short-term investments		36,560		1		(42	)		36,519
	$	53,450	$	1	$	(42	)	$	53,409

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,
	2017		2016
Due within one year	$	22,228	$	27,730
Due within two years		8,955		8,789
	$	31,183	$	36,519

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, 2017 and 2016 (in thousands):

As of December 31, 2017	In Loss Position Less Than 12 Months					In Loss Position More Than 12 Months					Total In Loss Position
Description	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Certificates of deposit	$	718	$	(2	)	$	—	$	—		$	718	$	(2	)
Corporate notes and bonds		16,530		(32	)		6,947		(47	)		23,477		(79	)
U.S. government agency securities		3,720		(3	)		998		—			4,718		(3	)
Total	$	20,968	$	(37	)	$	7,945	$	(47	)	$	28,913	$	(84	)

As of December 31, 2016	In Loss Position Less Than 12 Months					In Loss Position More Than 12 Months					Total In Loss Position
Description	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Certificates of deposit	$	480	$	—		$	—	$	—		$	480	$	—
Corporate notes and bonds		12,450		(15	)		5,767		(25	)		18,217		(40	)
U.S. government agency securities		3,422		(1	)		998		—			4,420		(1	)
Total	$	16,352	$	(16	)	$	6,765	$	(25	)	$	23,117	$	(41	)

Computation of Basic and Diluted Net Earnings (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,
	2017			2016
Net loss		(1,526	)		(15,956	)
Basic:
Weighted-average shares of common stock outstanding		18,644			18,409
Shares used in computing basic net loss per share		18,644			18,409
Basic net loss per share	$	(0.08	)	$	(0.87	)
Diluted:
Weighted-average shares of common stock outstanding		18,644			18,409
Add: Common equivalent shares outstanding		—			—
Shares used in computing diluted net loss per share		18,644			18,409
Diluted net loss per share	$	(0.08	)	$	(0.87	)

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 Gains (Losses) on Investments			Total
Balance as of December 31, 2016	$	(2,288	)	$	(41	)	$	(2,329	)
Current-period other comprehensive gain (loss)		264			(43	)		221
Balance as of December 31, 2017	$	(2,024	)	$	(84	)	$	(2,108	)

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, 2017 and 2016:

	Stock Option Plan						Employee Stock Purchase Plan
	2017			2016			2017			2016
Risk-free interest rate		1.71	%		0.9	%		0.5	%		0.5	%
Expected term (in years)		3.0			3.9			0.5			0.5
Volatility		41.2	%		48.3	%		39.0	%		46.7	%
Expected dividend		0	%		0	%		0	%		0	%
Weighted average grant-date fair value	$	0.68		$	0.32		$	0.39		$	0.24

Stock-Based Compensation Expense

We recorded the following stock-based compensation expense for the fiscal years ended December 31, 2017 and 2016 (in thousands):

	For the Year Ended December 31,
	2017		2016
Stock-based compensation expense related to grants of:
Stock options	$	144	$	387
ESPP		21		40
RSU		265		1,560
	$	430	$	1,987
Stock-based compensation expense recognized in:
Cost of service	$	109	$	172
Cost of software and others		4		5
Research and development		78		400
Sales and marketing		59		172
General and administrative		180		1,238
	$	430	$	1,987

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

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, 2017 and 2016 (in thousands):

As of December 31, 2017	Level 1		Level 2		Level 3		Total
Money market funds	$	10,642	$	—	$	—	$	10,642
Certificates of deposit		—		1,206		—		1,206
Commercial paper		—		2,493		—		2,493
Corporate notes and bonds		—		22,769		—		22,769
U.S. government agency securities		—		4,715		—		4,715
Total	$	10,642	$	31,183	$	—	$	41,825

As of December 31, 2016	Level 1		Level 2		Level 3		Total
Money market funds	$	9,297	$	—	$	—	$	9,297
Certificates of deposit		—		1,273		—		1,273
Commercial paper		—		4,989		—		4,989
Corporate notes and bonds		—		19,317		—		19,317
U.S. government agency securities		—		10,940		—		10,940
Total	$	9,297	$	36,519	$	—	$	45,816

Summary of Long-Lived Assets by Geographic Areas

Long-lived assets by geographic areas are as follows (in thousands):

	December 31,
	2017		2016
United States	$	1,132	$	1,681
India		-		23
Philippines		1		2
Total	$	1,133	$	1,706