Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v3.3.0.814
Stock-Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Summary of Stock Option Activity
A summary of the Company’s stock option activity for the nine months ended September 30, 2015 is as follows:
 
Options
 
Weighted-Average
Exercise Price
Outstanding at December 31, 2014
1,383,479

 
$
5.13

Granted
1,684,759

 
$
0.90

Exercised
—

 
—

Forfeited
(997,014
)
 
$
2.85

Expired
(360,533
)
 
$
2.88

Outstanding at September 30, 2015
1,710,691

 
$
2.78

Exercisable at September 30, 2015
593,090

 
$
6.25

Vested and expected to vest at September 30, 2015
1,665,095

 
$
2.83

Schedule of Black-Scholes-Merton Option Pricing Model
The following assumptions were used in the Black-Scholes valuation model related to non-employee stock options granted during the nine months ended September 30, 2014:
Weighted-average risk-free interest rate
2.66
%
Weighted-average expected life (in years)
9.9

Expected dividend yield
—
%
Weighted-average expected volatility
44
%
Summary of Restricted Stock Unit Activity
Restricted stock awards (“RSA”) activity for the nine months ended September 30, 2015 was as follows:
 
Number of Awards
 
Weighted-Average
Grant Date
Fair Value
Unvested at December 31, 2014
—

 
$
—

Granted
30,000

 
$
0.75

Vested
(30,000
)
 
$
0.75

Forfeited
—

 
$
—

Unvested at September 30, 2015
—

 
$
—

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation expense included in the condensed consolidated statements of operations and comprehensive loss was allocated as follows (in thousands):
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
2015
 
2014
 
2015
 
2014
Cost of revenue
$
11

 
$
10

 
$
45

 
$
225

Research and development
8

 
505

 
167

 
1,304

General and administrative
46

 
715

 
405

 
6,192

Selling and marketing
11

 
554

 
163

 
2,265

Capitalized into inventory
20

 
243

 
66

 
865

Total stock-based compensation expense
$
96

 
$
2,027

 
$
846

 
$
10,851

Schedule of Unrecognized Compensation Cost, Nonvested Awards
Unrecognized stock-based compensation at September 30, 2015 was as follows (in thousands):
 
Unrecognized Stock-Based Compensation
 
Weighted Average Remaining Period of Recognition (in years)
Stock options
$
566

 
2.0
Employee Stock Option  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Schedule of Black-Scholes-Merton Option Pricing Model
The following weighted average assumptions were used in the calculation to estimate the fair value of options granted to employees nine months ended September 30, 2015 and 2014:
 
Nine Months Ended September 30,
2015
 
2014
Weighted-average risk-free interest rate
1.64
%
 
1.84
%
Weighted-average expected life (in years)
6.3

 
6.3

Expected dividend yield
—
%
 
—
%
Weighted-average expected volatility
48
%
 
48
%