Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v2.4.0.8
Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2014
Summary of Stock Option Activity

A summary of the Company’s stock option activity for the three months ended March 31, 2014 was as follows:

 

 

Options

 

 

Weighted-Average

Exercise Price

 

Outstanding at December 31, 2013

 

106,544

 

 

$

28.90

 

Granted

 

170,392

 

 

$

6.12

 

Exercised

 

-

 

 

 

-

 

Cancelled

 

-

 

 

 

-

 

Outstanding at March 31, 2014

 

276,936

 

 

$

14.88

 

Exercisable at March 31, 2014

 

201,401

 

 

$

17.48

 

Vested and expected to vest at March 31, 2014

 

271,483

 

 

$

15.04

 

 

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 three months ended March 31, 2014:

 

Weighted-average risk-free interest rate

 

2.78

%

Weighted-average expected life (in years)

 

10.0

 

Expected dividend yield

 

0

%

Weighted-average expected volatility

 

45

%

 

 

 

 

 

Summary of Restricted Stock Unit Activity

Restricted stock unit (“RSU”) activity for the three months ended March 31, 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

 

(19,847

)

 

$

8.96

 

Unvested at March 31, 2014

 

1,840,901

 

 

$

6.10

 

 

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 March 31,

 

 

2014

 

 

2013

 

Cost of revenue

$

2

 

 

$

-

 

Research and development

 

87

 

 

 

12

 

General and administrative

 

852

 

 

 

30

 

Selling and marketing

 

420

 

 

 

4

 

Capitalized into inventory

 

43

 

 

 

-

 

Total stock-based compensation expense

$

1,404

 

 

$

46

 

 

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

Unrecognized stock-based compensation for stock options and RSUs at March 31, 2014 was as follows (in thousands):

 

 

 

 

 

 

Weighted

 

 

 

 

 

 

Average

 

 

Unrecognized

 

 

Remaining Period

 

 

Stock-Based

 

 

of Recognition

 

 

Compensation

 

 

(in years)

 

Stock options

$

551

 

 

 

1.8

 

RSUs

 

10,877

 

 

 

0.4

 

Total unrecognized stock-based compensation at March 31, 2014

$

11,428

 

 

 

 

 

 

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

%