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Stock-Based Compensation Plans (Tables)
12 Months Ended
Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

For stock option and compensation-based warrants granted during 2008, 2011 and 2012 the following weighted average assumptions were used in determining fair value:

 

    2008     2011     2012  
Risk-free interest rate     3.10 %     2.30 %     0.78 %
Dividend yield          - %     - %     - %
Expected volatility     80 %     163 %     185 %
Expected term in months     76       81       61
Schedule of Share-based Compensation, Stock Options, Activity

Option activity under the Plan for the year ended December 31, 2012, was as follows:

 

                Weighted        
          Weighted-     Average        
          Average     Remaining     Aggregate  
          Exercise     Contractual     Intrinsic  
    Options     Price     Term     Value  
                (In years)        
Year Ended December 31, 2012                                
Outstanding at December 31, 2011     3,432,188     $ 1.23       6.8     $ 2,839  
Granted     50,000     $ 0.37       9.5          
Exercised     -       -                  
Forfeited/expired     -       -                  
Outstanding at December 31, 2012     3,482,188     $ 1.22       5.8     $ 5,339  
Vested and expected to vest December 31, 2012     3,482,188     $ 1.22       5.8     $ 5,339  
Exercisable at December 31, 2012     181,771     $ 0.32       7.0     $ 4,130
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

A summary of options outstanding and exercisable as of December 31, 2012:

 

      Options Outstanding     Options Exercisable  
            Weighted                    
Range of           Average     Weighted           Weighted  
Exercise     Number     Remaining     Average     Number     Average  
Prices     Outstanding     Contractual Life     Exercise Price     Exercisable     Exercise Price  
            (Years)                    
                                 
$ 0.30       56,771       5.3     $ 0.30       56,771     $ 0.30  
$ 0.33       125,000       8.5     $ 0.33       125,000     $ 0.33  
$ 0.35       25,000       8.3     $ 0.35       -       -  
$ 0.39       25,000       8.8     $ 0.39       -       -  
$ 0.53       20,000       8.1     $ 0.53       -       -  
$ 0.90       730,417       5.3     $ 0.90       -       -  
$ 1.40       2,500,000       5.8     $ 1.40       -       -  
                                             
          3,482,188       5.8     $ 1.22     $ 181,771     $ 0.32
Warrant
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Compensation, Stock Options, Activity

Warrant activity under the Plan for the year ended December 31, 2012, was as follows:

 

                Weighted        
          Weighted-     Average        
          Average     Remaining     Aggregate  
          Exercise     Contractual     Intrinsic  
    Warrants     Price     Term     Value  
                (In years)        
Year Ended December 31, 2012                                
Outstanding at December 31, 2011     85,620     $ 0.90       1.9     $ -  
Granted     -                          
Exercised     -                          
Forfeited/expired     -                          
Outstanding at December 31, 2012     85,620     $ 0.90       0.9     $ -  
Vested and expected to vest December 31, 2012     85,620     $ 0.90       0.9     $ -  
Exercisable at December 31, 2012     -       -       -       -
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

A summary of warrants outstanding and exercisable as of December 31, 2012:

 

      Warrants Outstanding     Warrants Exercisable  
            Weighted                    
Range of           Average     Weighted           Weighted  
Exercise     Number     Remaining     Average     Number     Average  
Prices     Outstanding     Contractual Life     Exercise Price     Exercisable     Exercise Price  
            (Years)                    
                                 
$ 0.90       85,620       0.9     $ 0.90       -       -  
                                             
          85,620       0.9     $ 0.90       -       -