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, Share-based Payments [Abstract]  
Schedule of stock option activity

A summary of the stock option activity and related information for the Plans for the years ended December 31, 2018, and 2017 is as follows: 

 

    Shares     Weighted-Average
Exercise Price
    Weighted-Average
Remaining 
Contractual Term
    Aggregate
Intrinsic
Value
 
Outstanding at January 1, 2017     21,745     $ 913.29       7.82     $  
Grants     26,000     $ 46.34                
Exercised                              
Forfeitures or expirations     (7,571 )     670.36                  
Outstanding at January 1, 2018     40,174     $ 398.06       8.35     $  
Grants     101,968     $ 37.52             $  
Exercised                              
Forfeitures or expirations     (4,997 )   $ 38.75                  
                                 
Outstanding at December 31, 2018     137,145     $ 143.09       8.14     $  
Vested and expected to vest at
December 31, 2017
    137,145     $ 143.09       8.14     $  
Exercisable at December 31, 2018     39,860     $ 375.05       5.84     $  
Schedule of fair value assumptions of stock option

The assumptions used in the valuation of stock options granted during the years ended December 31, 2018 and 2017 were as follows:

 

    2018     2017  
Risk-free interest rate     2.54% to 2.81%       1.75% to 2.33%  
Expected term of option     4.5 to 7.00 years       5.0 to 7.91 years  
Expected stock price volatility     99.65% to 109.22%       76.28% to 77.59%  
Expected dividend yield     0%       0%  
Schedule of restricted stock activity

The following table summarizes the RSU activity for the years ended December 31, 2018 and 2017:

 

Unvested restricted stock units as of January 1, 2017   1,126  
Granted      
Forfeited      
Vested     (1,126 )
Unvested restricted stock units as of January 1, 2018      
Granted      
Forfeited      
Vested      
Unvested restricted stock units as of December 31, 2018