Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Tables)

v3.8.0.1
Stockholders' Equity (Tables)
9 Months Ended
Sep. 30, 2017
Stockholders' equity (deficit):  
Schedule of equity compensation plans

Stock option activity under all of the Company’s Plans during the nine months ended September 30, 2017 is summarized below:

  

      Shares     Weighted -
Average
Exercise
Price
 
Outstanding at December 31, 2016       337,441     $ 42.07  
Granted       13,625       2.90  
Forfeited       (40,117 )     36.06  
Outstanding at September 30, 2017       310,949     $ 41.95  
Schedule of assumptions used in calculating the fair value under the Black-Scholes option-pricing model

The estimated grant date fair values of options granted during the three months ended September 30, 2017 were calculated using the Black-Scholes valuation model, based on the following assumptions:

  

Dividend yield     0%  
Expected volatility     43.38% - 48.62%  
Risk free interest rates     1.91% - 2.05%  
Expected lives (in years)     6
Schedule of share-based compensation expense

The Company records share-based compensation expense on a straight-line basis over the related vesting period. For the three and nine months ended September 30, 2017 and 2016, share-based compensation expense related to options was:

   

Three Months Ended September 30,  
2017   2016  
$ 186,982   $ 238,101  

 

 

Nine Months Ended September 30,  
2017   2016  
$ 616,007   $ 736,982  

Schedule of common stock warrant activity

Warrants have generally been issued for terms of up to five years. Common stock warrant activity for the nine months ended September 30, 2017 was as follows:

 

      Shares     Weighted -
Average Exercise
Price
 
Outstanding at December 31, 2016       1,991,293     $ 13.00  
Issued       7,134,200       2.20  
Exercised       (3,845 )     2.00  
Terminated       (172,070 )     32.77  
Outstanding at September 30, 2017       8,949,578     $ 4.12