Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v3.5.0.2
Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Stock Option Activity

A summary of the Company’s stock option activity for the six months ended June 30, 2016 was as follows:

 

    Options     Weighted-Average
Exercise Price 		 
Outstanding at December 31, 2015     112,373     $ 41.53  
Granted     23,004     $ 1.69  
Expired     (13,702 )   $ 24.17  
Outstanding at June 30, 2016     121,675     $ 35.95  
Exercisable at June 30, 2016     81,111     $ 56.73  
Vested and expected to vest at June 30, 2016     119,738     $ 36.37  

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 during the six months ended June 30, 2016 and 2015:

 

    Six Months Ended June 30  
    2016     2015  
Weighted-average risk-free interest rate     1.86 %     1.63 %
Weighted-average expected life (in years)     6.3       6.3  
Expected dividend yield     0 %     0 %
Weighted-average expected volatility     65 %     47 %

Schedule of Stock-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 June 30,     Six Months Ended June 30,  
    2016     2015     2016     2015  
Cost of revenue   $ 3     $ 5     $ 7     $ 34  
Research and development     24       37       53       159  
General and administrative     35       31       75       359  
Selling and marketing     2       10       17       152  
Capitalized into inventory     1       7       3       46  
Total stock-based compensation expense   $ 65     $ 90     $ 155     $ 750  

Schedule of Unrecognized Compensation Cost, Nonvested Awards

Unrecognized stock-based compensation at June 30, 2016 was as follows (in thousands):

 

    Unrecognized Stock-
Based Compensation 		    Weighted Average
Remaining Period of
Recognition (in years) 		 
Stock options   $ 370       1.5