Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2017

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

Summary of share-based compensation

A detail of share-based compensation cost for the years ended December 31, 2017, 2016 and 2015 is as follows (in thousands):

	Year Ended December 31,
	2017		2016		2015
Stock options:
Incentive Stock Options (share settled)	$	820	$	206	$	243
Non-Qualified Stock Options (share settled)	387		164		71
Restricted stock (share settled)	197		1,073		4,303
Cash settled stock units	245		244		(439		)
Share-based compensation	$	1,649	$	1,687	$	4,178

Schedule of stock option valuation assumptions

The following table outlines the assumptions used in computing the fair value of stock options granted during 2017 and 2016:    

	Years Ended December 31,
	2017	2016
Dividend yield	—%	—%
Expected volatility	80.44%	62.0%-79.99%
Risk-free rate	1.925%	1.255%-2.09%
Expected term	6 years	6 years
Stock options granted	219,130	1,168,754
Wgtd. avg. grant date fair value per share	$1.28	$1.96
Fair value of grants	$280,000	$2,293,000

Schedule of stock options activity

The following table details stock option activity during the year ended December 31, 2017:

	Number of Options		Wgtd. Avg. Exercise  Price		Wgtd. Avg. Remaining  Life	Aggregate Intrinsic  Value (000’s)
Outstanding at beginning of year	1,412,940		$	7.13
Granted	219,130		1.85
Expired/cancelled/forfeited	(23,424	)	21.49
Exercised	—
Outstanding at end of year	1,608,646		6.20		8.08	$	9
Options exercisable at end of year	705,594		$	10.34	7.00	$	—
Options expected to vest	1,563,493		6.29		8.06	$	8

Schedule of stock option plans, by exercise price range

The following table summarizes information regarding stock options outstanding at December 31, 2017:

Range of	Options	Wgtd. Avg.	Wgtd. Avg.	Options	Wgtd. Avg.
Exercise	Outstanding	Remaining	Exercise	Exercisable	Exercise
Price	12/31/2017	Contractual Life	Price	12/31/2017	Price
$0.00-$2.49	285,503	9.48	$1.97	22,150	$2.37
$2.50-$3.49	878,833	8.74	$3.17	362,973	$3.17
$3.50-$4.99	206,769	8.38	$4.26	82,930	$4.23
$15.00-$30.32	237,541	3.71	$24.18	237,541	$24.18
	1,608,646			705,594	$10.34

Schedule of restricted stock units activity

The following table details MRSU and RSU activity during the year ended December 31, 2017:

	MRSU		RSU		Total
Outstanding at beginning of year	14,929		31,979		46,908
Granted	270,269		889,587		1,159,856
Expired/Cancelled/Forfeited	—		(276	)	(276	)
Vested/Paid	(7,465	)	(31,703	)	(39,168	)
Outstanding at December 31, 2017	277,733		889,587		1,167,320

The following table details restricted stock activity during the year ended December 31, 2017:

	Number of Shares		Wgtd. Avg. Fair Value  per Share
Outstanding at beginning of year	78,557		$16.57
Granted	487,502		$1.87
Lapse of restrictions	(78,557	)	$16.57
Outstanding at December 31, 2017	487,502		$1.87