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Stockholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2013
Equity [Abstract]  
Stock option plan activity
Following is a summary of the Company’s stock option plan activity and related information:
 
 
Shares
 
Weighted
Average
Exercise
Price
 
Weighted
Average
Remaining
Contractual
Term in
Years
 
Aggregate
Intrinsic
Value
(In  thousands)
Balance at December 31, 2010
641,261

 
$
21.36

 
7.00
 
$
9

Granted
636,580

 
9.98

 
 
 
 
Exercised
(6,072
)
 
9.51

 
 
 
 
Forfeited
(50,782
)
 
11.95

 
 
 
 
Cancelled
(74,941
)
 
34.55

 
 
 
 
Balance at December 31, 2011
1,146,046

 
14.61

 
7.96
 
1,489

Granted
714,345

 
14.72

 
 
 
 
Exercised
(86,588
)
 
11.31

 
 
 
 
Forfeited
(118,026
)
 
11.39

 
 
 
 
Cancelled
(29,171
)
 
24.16

 
 
 
 
Balance at December 31, 2012
1,626,606

 
14.90

 
7.83
 
11,358

Granted
439,929

 
23.61

 
 
 
 
Exercised
(217,069
)
 
14.60

 
 
 
 
Forfeited
(73,978
)
 
16.72

 
 
 
 
Cancelled
(28,779
)
 
29.87

 
 
 
 
Balance at December 31, 2013
1,746,709

 
16.79

 
7.57
 
62,705

Exercisable at December 31, 2013
977,351

 
15.69

 
6.87
 
36,232

Options vested and expected to vest as of December 31, 2013
1,746,709

 
$
16.79

 
7.57
 
$
62,705
Stock option plan activity, by exercise price range
Following is a further breakdown of the options outstanding as of December 31, 2013:
 
Range of exercise prices
Options
outstanding
 
Weighted
average
remaining  life
in years
 
Weighted average
exercise price
 
Options
exercisable
 
Weighted average
exercise price
$6.82 – $ 10.05
459,732

 
6.97
 
$
9.94

 
350,804

 
$
9.92

10.12 – 13.53
113,684

 
7.90
 
11.39

 
106,070

 
11.34

  14.47 – 14.47
489,633

 
8.11
 
14.47

 
204,019

 
14.47

  16.14 – 21.00
199,248

 
5.21
 
18.14

 
184,301

 
18.11

  21.92 – 87.96
484,412

 
8.50
 
26.35

 
132,157

 
33.00

 6.82 – 87.96
1,746,709

 
7.57
 
$
16.79

 
977,351

 
$
15.69
Restricted stock activity
The following is a summary of the Company’s restricted stock activity and related information:
 
 
Shares
 
Weighted-Average
Grant Date Fair
Value
Nonvested at December 31, 2010
62,146

 
$
13.60

Granted
119,826

 
10.07

Vested
(59,936
)
 
12.47

Forfeited
(6,530
)
 
11.71

Nonvested at December 31, 2011
115,506

 
10.63

Granted
109,261

 
13.76

Vested
(72,194
)
 
11.47

Forfeited
(11,012
)
 
11.84

Nonvested at December 31, 2012
141,561

 
12.52

Granted
84,547

 
27.71

Vested
(85,681
)
 
14.59

Forfeited
(25,041
)
 
13.38

Nonvested at December 31, 2013
115,386

 
$
21.93