Quarterly report pursuant to Section 13 or 15(d)

STOCK BASED COMPENSATION (Tables)

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STOCK BASED COMPENSATION (Tables)
6 Months Ended
Jun. 30, 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 six months ended June 30, 2018 is as follows:

  

    Shares     Weighted-Average
Exercise Price
    Weighted-Average
Remaining 
Contractual Term
   

Aggregate

 Intrinsic
Value

 
Outstanding at January 1, 2018     401,724     $ 39.81       8.35      $    
Grants     1,004,634     $ 3.79             $    
Exercised     -                          
Forfeitures or expirations     -                        
Outstanding at June 30, 2018     1,406,358     $ 14.08         9.07      $ 705,284  

 

 

Vested and expected to vest at June 30, 2018

    1,406,358     $ 14.08         9.07      $ 705,284  
Exercisable at June 30, 2018     323,673     $ 44.43        7.34      $ 47,850  
Schedule of fair value assumptions of stock option

The assumptions used in the valuation of stock options granted during the six months ended June 30, 2018 and 2017 were as follows:

  

    Six Months Ended 
June 30, 2018
    Six Months Ended 
June 30, 2017
 
Risk-free interest rate     2.54% to 2.81%       1.77% to 2.29%  
Expected term of option     4.50 to 7.00 years       5.00 to 7.91 years  
Expected stock price volatility     99.65% to 102.00%       76.61% to 77.36%  
Expected dividend yield     0.0%       0.0%