Stockholder's Equity (Tables)

12 Months Ended

Dec. 31, 2018

Stockholders' Equity Note [Abstract]

Common Stock Shares Reserved For Future Issuance

We generally issue previously unissued common stock upon the exercise of stock options, the vesting of restricted stock units and upon granting of restricted common stock awards; however we may reissue previously acquired treasury shares to satisfy these future issuances. Shares of authorized but unissued common stock reserved for future issuance were as follows (in thousands):



	December 31, 2018
Common stock:
Stock options issued and outstanding	1,005
Restricted stock units issued and outstanding	1,869
Shares available for grant	512
Total shares reserved	3,386

Schedule Of Stock Option Share Activity Under Stock Plans

The following table summarizes activity under our 2014 Equity Incentive Plan (the “2014 Plan”) for the year ended December 31, 2018 (in thousands):



	Shares Available for Grant ⁽¹⁾
Shares available for grant December 31, 2017 ⁽¹⁾	1,409
Restricted stock units granted (²⁾	(827	)
Options granted ⁽³⁾	(317	)
Restricted stock units cancelled ⁽⁴⁾	198
Options cancelled	49
Shares available for grant December 31, 2018 ⁽¹⁾	512


(1)	Shares available for grant do not include treasury stock shares that could be granted if we determined to do so.


(2)	Includes grants of restricted stock units with service, performance-based or market-based vesting criteria.


(3)	Includes grants of stock options with service, performance-based or market-based vesting criteria.


(4)	Includes cancelled restricted stock units with service, performance-based or market-based vesting criteria.

Schedule Of Activity Under Stock Plans

The following table summarizes stock option activity under the Stock Plans (in thousands, except weighted-average exercise price and weighted-average remaining contractual life data):



	Number of Stock Options ⁽¹⁾		Weighted Average Exercise Price		Weighted-Average Remaining Contractual Life (years)	Aggregate Intrinsic Value ⁽²⁾
Balance outstanding at December 31, 2017	983		$	17.38	4.6	$	2,522
Granted	317		$	23.42
Exercised	(165	)	$	16.69
Cancelled	(130	)	$	24.37
Balance outstanding at December 31, 2018	1,005		$	18.34	5.0	$	20,226
Vested and expected to vest at December 31, 2018	953		$	18.13	4.9	$	19,390
Exercisable at December 31, 2018	451		$	16.40	3.9	$	9,987


(1)	Includes certain stock options with service, performance-based or market-based vesting criteria.


(2)	The aggregate intrinsic value is calculated as the product between eHealth’s closing stock price as of December 31, 2018 and December 31, 2017 at the exercise price of in-the-money options as of those dates.

The following table provides information pertaining to our stock options for the years ended December 31, 2018, 2017 and 2016 (in thousands, except weighted-average fair values):



	Year Ended December 31,
	2018		2017		2016
Weighted average fair value of options granted	$	12.78	$	9.03	$	4.46
Total fair value of options vested	$	2,263	$	799	$	1,243
Intrinsic value of options exercised	$	1,461	$	430	$	4

Schedule Of Restricted Stock Unit Activity Under Stock Plans

The following table summarizes restricted stock unit activity under the Stock Plans (in thousands, except weighted-average grant date fair value and weighted-average remaining contractual life data):



	Number of Restricted Stock Units ¹		Weighted-Average Grant Date Fair Value		Weighted-Average Remaining Service Period	Aggregate Intrinsic Value ⁽²⁾
Unvested as of December 31, 2017	1,745		$	14.24	2.3	$	30,313
Granted	846		$	21.14
Vested	(524	)	$	14.26
Cancelled	(198	)	$	16.08
Unvested as of December 31, 2018	1,869		$	16.95	4.8	$	71,816


(1)	Includes certain restricted stock units with service, performance-based or market-based vesting criteria.


(2)	The aggregate intrinsic value is calculated as the difference of our closing stock price as of December 31, 2018 and December 31, 2017 multiplied by the number of restricted stock units outstanding as of December 31, 2018 and December 31, 2017, respectively.

Schedule Of Fair Value Of Stock Options Granted, Valuation Assumptions

Stock-Based Compensation Expense—The fair value of stock options granted to employees for the years ended December 31, 2018, 2017 and 2016 was estimated using the following weighted average assumptions:



	Year Ended December 31,
	2018	2017	2016
Expected term	4.3	4.3	4.4
Expected volatility	68.3%	69.8%	65.4%
Expected dividend yield	—%	—%	—%
Risk-free interest rate	2.7%	1.8%	1.1%

The weighted-average fair value of the market-based options and restricted stock units was determined using the Monte Carlo simulation model using the following weighted average assumptions:



	Year Ended December 31,
	2018	2017	2016
Expected term	1.6	1.6	2.1
Expected volatility	69.8%	70.9%	67.9%
Expected dividend yield	—%	—%	—%
Risk-free interest rate	2.5%	1.7%	1.1%
Weighted-average grant date fair value	$13.48	$9.42	$9.64

Schedule Of Stock-Based Compensation Expense By Award Type

The following table summarizes stock-based compensation expense recorded during the years ended December 31, 2018, 2017 and 2016 (in thousands):



	Year Ended December 31,
	2018		2017		2016
Common stock options	$	1,991	$	1,863	$	1,015
Restricted stock units	10,549		7,831		6,251
Total stock-based compensation expense	$	12,540	$	9,694	$	7,266

Schedule Of Stock-Based Compensation Expense By Operating Function

The following table summarizes stock-based compensation expense by operating function for the years ended December 31, 2018, 2017 and 2016 (in thousands):



	Year Ended December 31,
	2018		2017		2016
Marketing and advertising	$	1,974	$	1,033	$	1,237
Customer care and enrollment	816		418		497
Technology and content	1,675		1,410		1,836
General and administrative	7,824		6,833		3,696
Restructuring charge	251		—		—
Total stock-based compensation expense	$	12,540	$	9,694	$	7,266