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Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Deferred Compensation Arrangement with Individual, Share-based Payments [Table Text Block]



	Year Ended December 31,
Stock-based Compensation	2016		2015		2014
(In thousands)
Employees and directors	$	3,679	$	1,952	$	1,157
Non-employees	63		93		344
Total	$	3,742	$	2,045	$	1,501

Schedule of common stock activity available under share-based compensation plans



Title of Plan	Total Shares of Common Stock Authorized	Total Shares of Common Stock Issued	Total Shares of Common Stock Subject to Outstanding Awards	Total Shares of Common Stock Available for Grant
2005 Equity Incentive Plan⁽¹⁾	6,200,000	2,767,700	—	3,432,300
2002 Outside Directors Stock Option Plan⁽²⁾	157,000	157,000	—	—
1999 Non-statutory Stock Option Plan⁽²⁾	4,966,183	4,966,183	—	—
1999 Stock Option Plan⁽²⁾	3,694,485	3,694,485	—	—

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]



	2016			2015				2014
	Number of shares (in thousands)	Weighted-Average Exercise Price		Number of shares (in thousands)		Weighted-Average Exercise Price		Number of shares (in thousands)		Weighted-Average Exercise Price
Outstanding at beginning of year	—	$	—	58		$	5.41	172		$	16.52
Expired	—	$	—	(58	)	$	5.41	(114	)	$	22.08
Outstanding at end of year	—	$	—	—		$	—	58		$	5.41
Exercisable at end of year	—	$	—	58		$	—	58		$	5.41

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]



	2016				2015				2014
	Number of shares (in thousands)		Weighted-average grant-date fair value per share		Number of shares (in thousands)		Weighted-average grant-date fair value per share		Number of shares (in thousands)		Weighted- average grant-date fair value per share
Nonvested at beginning of year	586		$	7.13	277		$	8.39	114		$	7.45
Awards granted	1,264		$	3.31	522		$	6.40	312		$	8.39
Awards vested	(366	)	$	6.65	(173	)	$	8.38	(149	)	$	7.67
Forfeited	(12	)	$	7.10	(40	)	$	7.79	—		$	—
Nonvested at end of year	1,472		$	3.96	586		$	7.13	277		$	8.39

- Definition

Tabular disclosure of an equity-based arrangement (such as stock or unit options and stock or unit awards) with an individual employee, which is generally an employment contract between the entity and a selected officer or key employee containing a promise by the employer to pay certain equity-based awards at future dates, sometimes including a period after retirement, upon compliance with stipulated requirements. This type of arrangement is distinguished from broader based employee benefit plans as it is usually tailored to the employee. Disclosure also typically includes the amount of related compensation expense recognized during the reporting period, the number of shares or units issued during the period under such arrangements, and the carrying amount as of the balance sheet date of the related liability.

+ References + Details