Quarterly report pursuant to Section 13 or 15(d)

STOCK BASED COMPENSATION (Tables)

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STOCK BASED COMPENSATION (Tables)
3 Months Ended
Mar. 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 three months ended March 31, 2018 is as follows:

 

    Shares     Weighted-
Average 
Exercise Price
    Weighted-
Average 
Remaining 
Contractual Term
 
Outstanding at January 1, 2018     401,724     $ 39.81       8.35   
Grants     834,634     $ 3.70          
Exercised     -                  
Forfeitures or expirations     -     $ -          
Outstanding at March 31, 2018     1,236,358     $ 15.43       9.20  
                         
Vested and expected to vest at March 31, 2018     1,236,358     $ 15.43       9.20  
Exercisable at March 31, 2018     178,810     $ 76.27       6.99  
Schedule of fair value assumptions of stock option

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

 

    Three Months Ended 
March 31, 2018
    Three Months Ended 
March 31, 2017
 
Risk-free interest rate     2.54% to 2.79%       1.99% to 2.29%  
Expected term of option     4.50 to 7.00 years       5.00 to 7.91 years  
Expected stock price volatility     101.74% to 102.00%       76.61% to 76.77%  
Expected dividend yield     0.0       0.0