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Share-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2018
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, 2018, 2017 and 2016 is as follows (in thousands):
 
 
Year Ended December 31,
 
 
2018
 
2017
 
2016
Stock options:
 
 
 
 
 
 
Incentive Stock Options (share settled)
 
$
407

 
$
820

 
$
206

Non-Qualified Stock Options (share settled)
 
94

 
387

 
164

Restricted stock (share settled)
 
465

 
197

 
1,073

Cash settled stock units
 
(241
)
 
245

 
244

Share-based compensation
 
$
725

 
$
1,649

 
$
1,687
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. No such grants were made during 2018.    
 

 
 
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, 2018:
 
 
Number of
Options
 
Wgtd. Avg.
Exercise  Price
 
Wgtd. Avg.
Remaining  Life
 
Aggregate
Intrinsic  Value
(000’s)
Outstanding at beginning of year
 
1,608,646

 
$
6.20

 
 
 
 
Granted
 
—

 
—

 
 
 
 
Expired/cancelled/forfeited
 
(121,823
)
 
4.98

 
 
 
 
Exercised
 
—

 
—

 
 
 
 
Outstanding at end of year
 
1,486,823

 
6.34

 
7.03
 
$
—

 
 
 
 
 
 
 
 
 
Options exercisable at end of year
 
1,047,590

 
$
7.78

 
6.64
 
$
—
Schedule of stock option plans, by exercise price range
The following table summarizes information regarding stock options outstanding at December 31, 2018:
 
 
 
 
 
 
 
 
 
 
 
Range of
 
Options
 
Wgtd. Avg.
 
Wgtd. Avg.
 
Options
 
Wgtd. Avg.
Exercise
 
Outstanding
 
Remaining
 
Exercise
 
Exercisable
 
Exercise
Price
 
12/31/2018
 
Contractual Life
 
Price
 
12/31/2018
 
Price
$0.00-$2.37
 
250,477

 
8.43
 
$1.99
 
105,780

 
$2.07
$3.17-$4.36
 
1,013,663

 
7.68
 
$3.37
 
719,127

 
$3.36
$16.72-$19.52
 
68,190

 
4.42
 
$17.11
 
68,190

 
$17.11
$20.40-$30.32
 
154,493

 
1.73
 
$28.15
 
154,493

 
$28.15
 
 
1,486,823

 
 
 
 
 
1,047,590

 
$7.78
Schedule of restricted stock units activity
The following table details restricted stock activity during the year ended December 31, 2018:
 
 

Number of
Shares
 
Wgtd. Avg.
Fair Value  per
Share
Outstanding at beginning of year
 
487,502

 
$1.87
Cancelled/forfeited
 
(34,946
)
 
$1.85
Lapse of restrictions
 
(37,500
)
 
$2.15
Outstanding at December 31, 2018
 
415,056

 
$1.85
The following table details MRSU and RSU activity during the year ended December 31, 2018:
 
MRSU
RSU
Total
Outstanding at beginning of year
277,733

889,587

1,167,320

Granted
—

—

—

Expired/Cancelled/Forfeited
(270,269
)
(78,808
)
(349,077
)
Vested/Paid
(7,464
)
(323,374
)
(330,838
)
Outstanding at December 31, 2018
—

487,405

487,405