XML 48 R30.htm IDEA: XBRL DOCUMENT v3.3.1.900
Stock-Based Compensation (Tables)
12 Months Ended
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Summary of options outstanding by exercise price range

Options Outstanding  Options Exercisable 
Range of Exercise Price Number Outstanding at 12/31/15  Weighted Average Remaining Contractual Life (years)  Weighted Average Exercise Price  Number Exercisable at 12/31/15  Weighted Average Exercise Price 
                
$ 2.08 -  $ 3.50  296,450   6.10  $2.98   62,717  $2.95 
$ 3.51 -   $ 5.00  1,516,000   3.16  $4.22   1,501,000  $4.23 
$ 5.01 -   $ 6.50  201,667   4.53  $5.84   161,385  $5.81 
$ 6.51 -   $ 8.21  170,000   2.80  $7.83   163,334  $7.84 
   2,184,117   3.65  $4.48   1,888,436  $4.63
Summary of assumptions used to value stock options granted to employees and directors
  For the year ended 
  December 31, 2015 
    
Annual dividend yield  - 
Expected life (years)  2.97 
Risk-free interest rate   0.47% - 1.41%
Expected volatility   60.07% - 72.33%

 

  For the year ended 
  December 31, 2014 
    
Annual dividend yield  - 
Expected life (years)  3.5 
Risk-free interest rate   0.28% - 1.47%
Expected volatility    60.68% - 108.75%

 

  For the year ended 
  December 31, 2013 
    
Annual dividend yield  - 
Expected life (years)  4.3 
Risk-free interest rate   0.65% - 2.15%
Expected volatility   117% - 154%

 

Summary of stock-based compensation expense
  Years ended 
  December 31, 
  2015  2014  2013 
          
Research and development $484  $510  $267 
Sales and marketing  296   353   909 
General and administrative  295   866   1,480 
Stock compensation expense $1,075  $1,729  $2,656 

 

(In thousands)

  Remaining unrecognized expense at 
December 31, 2015
 
Stock-based compensation $520
Summary of all warrant activity


Outstanding and exercisable Warrants  Weighted Average Exercise Price  Weighted Average 
Remaining Contractual Life
 
January 1, 2013  4,704,636  $1.61   1.41 
Issued  -   -   - 
Expired/forfeited  -   -   - 
Exercised  (3,876,063)  1.45   - 
December 31, 2013  828,573   2.39   2.06 
Issued  2,575,000   5.09   - 
Expired/forfeited  (40,000)  3.98   - 
Exercised  (28,500)  2.85   - 
December 31, 2014  3,335,073   4.45   0.93 
Issued  -   -   - 
Expired/forfeited  (2,591,000)  5.06   - 
Exercised  (280,000)  1.30   - 
Outstanding and exercisable, December 31, 2015  464,073  $3.02   0.19
Stock Options [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Summary of all stock option plans / warrant activity
  Options Outstanding 
        Weighted-    
        Average    
     Weighted-  Remaining    
     Average  Contractual  Aggregate 
  Number of  Exercise  Life  Intrinsic 
  Shares  Price  (in years)  Value 
Options outstanding – January 1, 2013  1,715,200  $5.04         
Options granted  145,000   6.06         
Options exercised  (241,361)  4.39         
Options cancelled or expired  (18,256)  5.57         
Options outstanding – December 31, 2013  1,600,583  $5.22         
Options granted  405,200   6.31         
Options exercised  -   -         
Options cancelled or expired  (296,383)  5.46         
Options outstanding – December 31, 2014  1,709,400   4.92         
Options granted  605,000   3.57         
Options exercised  -   -         
Options cancelled or expired  (130,283)  6.03         
Options outstanding – December 31, 2015  2,184,117  $4.48   3.65  $10,740 
Options exercisable and expected to vest – December 31, 2015  1,888,436  $4.63   3.30  $4,006
Warrant [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Summary of all stock option plans / warrant activity

Description
 Issue Date Exercise Price  Shares  Expiration Date
           
February 2011 Legal Advisor Warrant 2/22/2011 $2.50   80,000  2/22/2016
March  2011 Investor Warrants 3/9/2011 $3.13   349,973  3/9/2016
March  2011 Investor Warrants 4/7/2011 $3.13   34,100  4/7/2016
Total Warrants Outstanding        464,073