Annual report pursuant to Section 13 and 15(d)

Stock-based Compensation (Tables)

v3.19.1
Stock-based Compensation (Tables)
12 Months Ended
Dec. 31, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Assumptions Used To Estimate Fair Value of Options The assumptions used to estimate fair value and the resulting grant date fair values are as follows:

 

 

 

Employees

 

 

Non-employee Directors

 

 

 

Years Ended December 31,

 

 

Years Ended December 31,

 

 

 

2018

 

 

2017

 

 

2018

 

 

2017

 

Weighted average expected volatility

 

 

52.31

%

 

 

51.38

%

 

 

58.65

%

 

 

53.86

%

Weighted average risk-free interest rate

 

 

2.64

%

 

 

2.07

%

 

 

2.44

%

 

 

2.01

%

Weighted average expected term (in years)

 

 

6.02

 

 

 

6.04

 

 

 

5.28

 

 

 

5.37

 

Schedule of Share-based Compensation, Stock Options, Activity

The activity for the 2009 Plan, 2014 Plan and 2015 Plan for the years ended December 31, 2018 and 2017 is summarized as follows:

 

 

 

Number

of

Shares

 

 

Weighted-

Average

Exercise

Price

 

 

Weighted-

Average

Remaining

Contractual

Life (in years)

 

 

Aggregate

Intrinsic

Value ($000)

 

Outstanding — January 1, 2017

 

 

1,819,444

 

 

$

7.52

 

 

 

6.98

 

 

$

32

 

Granted

 

 

1,256,770

 

 

$

2.80

 

 

 

 

 

 

 

 

 

Exercised

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Forfeited/expired

 

 

(220

)

 

$

9.64

 

 

 

 

 

 

 

 

 

Outstanding — December 31, 2017

 

 

3,075,994

 

 

$

5.59

 

 

 

7.23

 

 

$

151

 

Exercisable — December 31, 2017

 

 

1,602,114

 

 

$

7.19

 

 

 

5.78

 

 

$

15

 

Vested or expected to vest — December 31, 2017

 

 

3,075,994

 

 

$

5.59

 

 

 

7.23

 

 

$

151

 

Outstanding — January 1, 2018

 

 

3,075,994

 

 

$

5.59

 

 

 

7.23

 

 

$

151

 

Granted

 

 

1,259,530

 

 

$

1.73

 

 

 

 

 

 

 

 

 

Exercised

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Forfeited/expired

 

 

(282,611

)

 

$

5.81

 

 

 

 

 

 

 

 

 

Outstanding — December 31, 2018

 

 

4,052,913

 

 

$

4.37

 

 

 

7.23

 

 

 

 

Exercisable — December 31, 2018

 

 

2,323,907

 

 

$

5.77

 

 

 

6.24

 

 

 

 

Vested or expected to vest —December 31, 2018

 

 

4,052,913

 

 

$

4.37

 

 

 

7.23

 

 

 

 

Schedule of Restricted Stock Units ("RSU") Activity

Restricted stock unit ("RSU") activity under the 2014 Plan for the year ended December 31, 2018, is summarized as follows:

 

 

Number of

Shares

 

 

Weighted

Average

Grant Date

Fair Value

Per Share

 

Non-vested at December 31, 2017

 

 

64,365

 

 

$

2.70

 

Granted

 

 

68,000

 

 

 

1.65

 

Vested

 

 

(14,785

)

 

 

2.68

 

Forfeited

 

 

(5,689

)

 

 

2.89

 

Non-vested at December 31, 2018

 

 

111,891

 

 

$

2.06

 

Stock-Based Compensation Expense Related to Stock Options

Stock-based compensation expense related to stock options is included in the following line items in the accompanying statements of operations (in thousands):

 

 

 

Years Ended December 31,

 

 

 

2018

 

 

2017

 

Research and development, net

 

$

519

 

 

$

458

 

Selling, general and administrative

 

 

1,297

 

 

 

1,204

 

Total stock-based compensation expense

 

$

1,816

 

 

$

1,662