Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v2.4.0.8
Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2014
Summary of Stock Option Activity

A summary of the Company’s stock option activity for the six months ended June 30, 2014 was as follows:

 

 

Options

 

 

Weighted-Average

Exercise Price

 

Outstanding at December 31, 2013

 

106,544

 

 

$

28.90

 

Granted

 

205,392

 

 

$

6.25

 

Exercised

 

-

 

 

 

-

 

Cancelled

 

(10,447

)

 

$

8.54

 

Outstanding at June 30, 2014

 

301,489

 

 

$

14.17

 

Exercisable at June 30, 2014

 

193,225

 

 

$

18.07

 

Vested and expected to vest at June 30, 2014

 

295,448

 

 

$

14.33

 

 

Schedule of Black-Scholes-Merton Option Pricing Model

The following assumptions were used in the Black-Scholes-Merton valuation model related to non-employee stock options granted during the six months ended June 30, 2014:

 

Weighted-average risk-free interest rate

 

2.69

%

Weighted-average expected life (in years)

 

9.9

 

Expected dividend yield

 

0

%

Weighted-average expected volatility

 

45

%

 

 

 

 

 

Summary of Restricted Stock Unit Activity

Restricted stock unit (“RSU”) activity for the six months ended June 30, 2014 was as follows:

 

 

Number of Awards

 

 

Weighted-Average

Grant Date

Fair Value

 

Unvested at December 31, 2013

 

168,832

 

 

$

14.36

 

Granted

 

1,730,714

 

 

$

5.75

 

Vested

 

(38,798

)

 

$

5.75

 

Forfeited

 

(33,232

)

 

$

7.84

 

Unvested at June 30, 2014

 

1,827,516

 

 

$

6.09

 

 

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

Total stock-based compensation expense included in the consolidated statements of operations and comprehensive loss was allocated as follows (in thousands):

 

 

Three Months Ended June 30,

 

 

Six Months Ended June 30,

 

 

2014

 

 

2013

 

 

2014

 

 

2013

 

Cost of revenue

$

213

 

 

$

2

 

 

$

215

 

 

$

2

 

Research and development

 

712

 

 

 

41

 

 

 

799

 

 

 

53

 

General and administrative

 

4,625

 

 

 

4

 

 

 

5,477

 

 

 

34

 

Selling and marketing

 

1,291

 

 

 

231

 

 

 

1,711

 

 

 

235

 

Capitalized into inventory

 

579

 

 

 

19

 

 

 

622

 

 

 

19

 

Total stock-based compensation expense

$

7,420

 

 

$

297

 

 

$

8,824

 

 

$

343

 

 

Schedule of Unrecognized Compensation Cost, Nonvested Awards [Table Text Block]

 

Unrecognized stock-based compensation for stock options and RSUs at June 30, 2014 was as follows (in thousands):

 

 

 

 

 

 

Weighted

 

 

 

 

 

 

Average

 

 

Unrecognized

 

 

Remaining Period

 

 

Stock-Based

 

 

of Recognition

 

 

Compensation

 

 

(in years)

 

Stock options

$

335

 

 

 

2.2

 

RSUs

 

3,468

 

 

 

0.1

 

Total unrecognized stock-based compensation at June 30, 2014

$

3,803

 

 

 

 

 

 

Employee Stock Option
 
Schedule of Black-Scholes-Merton Option Pricing Model

 

Weighted-average risk-free interest rate

 

1.84

%

Weighted-average expected life (in years)

 

6.30

 

Expected dividend yield

 

0

%

Weighted-average expected volatility

 

48

%