Organization, Basis of Presentation and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Net Loss Per Share

For purposes of this calculation, common stock subject to repurchase by the Company and options are considered to be common stock equivalents, and are only included in the calculation of diluted earnings per share when their effect is dilutive.

	Year Ended December 31,
	2016			2015			2014
	(in thousands, except per share amounts)
Numerator:
Net loss available to common stockholders	$	(15,343	)	$	(2,602	)	$	(11,799	)
Denominator:
Weighted average shares outstanding - basic		11,951			11,486			10,162
Potential common shares - options (treasury    stock method)		—			—			—
Weighted average shares outstanding - diluted		11,951			11,486			10,162
Shares excluded (anti-dilutive)		—			17			37
Shares excluded due to an exercise price greater than    weighted average stock price for the period		2,094			383			377
Net loss per common share:
Basic	$	(1.28	)	$	(0.23	)	$	(1.16	)
Diluted	$	(1.28	)	$	(0.23	)	$	(1.16	)